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Human Generated Data

Title

Cobalt Violet

Date

1927

People

Manufacturer: Lefranc,

Classification

Straus Materials

Credit Line

Harvard Art Museums/Straus Center for Conservation and Technical Studies, Forbes Pigment Collection, Straus.3

Human Generated Data

Title

Cobalt Violet

People

Manufacturer: Lefranc,

Date

1927

Classification

Straus Materials

Credit Line

Harvard Art Museums/Straus Center for Conservation and Technical Studies, Forbes Pigment Collection, Straus.3

Machine Generated Data

Tags

Amazon
created on 2023-10-24

Bottle 100
Purple 96.9
Cosmetics 92.3
Paper 83.2
Text 83.2
Ink Bottle 56.7

Clarifai
created on 2018-10-05

soap 97.2
no person 97
merchandise 96.2
fashion 94.8
treatment 94.1
perfume 93.3
lipstick 92.7
hygiene 91.2
aromatherapy 90.8
container 90.6
paper 89.9
set 89
label 88.9
bottle 88.8
care 88.6
blank 88
collection 87.9
shampoo 87.9
isolate 87
glamour 86.4

Imagga
created on 2018-10-05

perfume 100
toiletry 100
lotion 31
paper 21.2
bottle 20.4
object 18.3
pink 15.9
gift 15.5
box 15.3
powder 15.2
design 15.2
spa 13.5
care 13.2
cosmetic 12.9
yellow 12.6
card 12.2
liquid 12.2
cosmetics 12.2
education 12.1
blank 11.2
color 11.1
brown 11
business 10.9
frame 10.8
book 10.7
metal 10.5
hygiene 10.4
makeup 10.4
symbol 10.1
school 9.9
product 9.9
fashion 9.8
container 9.6
shiny 9.5
money 9.4
study 9.3
cover 9.3
wood 9.2
element 9.1
shampoo 8.9
tube 8.7
empty 8.6
glass 8.6
learn 8.5
finance 8.5
elegance 8.4
document 8.4
metallic 8.3
vintage 8.3
deodorant 8.3
make 8.2
collection 8.1
celebration 8
polish 7.8
package 7.8
3d 7.8
bathroom 7.7
brush 7.7
clean 7.5
decorative 7.5
close 7.4
birthday 7.4
gold 7.4
retro 7.4
security 7.4
treatment 7.4
plastic 7.3
shopping 7.3
board 7.3
cash 7.3
reflection 7.3
present 7.3
group 7.3
border 7.2
decoration 7.2
body 7.2
colorful 7.2
holiday 7.2

Google
created on 2018-10-05

perfume 92.5
purple 84.1
product 84.1
product 74.7
cosmetics 71.6
magenta 52.3

Microsoft
created on 2018-10-05

toiletry 94.9

Color Analysis

Feature analysis

Amazon

Perfume
Business Card

Clarifai

Perfume
Box

AWS Rekognition

Perfume 88.3%

Categories

Captions

Clarifai

Created by general-english-image-caption-clip on 2025-07-15

a box of perfume, c.

Salesforce

Created by general-english-image-caption-blip on 2025-05-20

a photograph of a bottle of liquid in a bottle of liquid

OpenAI GPT

Created by gpt-4o-2024-11-20 on 2025-06-08

This image shows two items related to a pigment sample labeled "Cobalt Violet."

  1. On the left: A small glass jar with a black screw-on lid containing a sample of cobalt violet pigment in powder form. The jar has a label attached, which includes text that reads "Cobalt Violet Co₃(PO₄)₂ or Co₃(AsO₄)₂ Lefranc, Paris 1927, EWF" indicating its chemical composition, manufacturer (Lefranc, Paris), and date (1927).

  2. On the right: A rectangular paint swatch showing cobalt violet pigment applied in two parts:

    • The upper half labeled "size" (likely indicating a binding medium such as glue).
    • The lower half labeled "linseed oil" (indicating the pigment mixed with oil as the medium).

At the bottom right, there is a color calibration strip with a labeled ruler for size reference, commonly used for documentation purposes in scientific or historical samples. The background is neutral white for clarity.

Created by gpt-4o-2024-08-06 on 2025-06-08

The image displays a bottle and a painted sample of the pigment "Cobalt Violet." On the left side, there is a small glass bottle with a black cap containing the violet pigment powder. The bottle is labeled with two chemical formulas: "Co3(PO4)2 or Co3(AsO4)2," suggesting the chemical composition of cobalt phosphate or cobalt arsenate. The label also indicates the pigment is from "Lefranc, Paris, 1927" and is marked by "EWF." Below the bottle, there is a handwritten number "3."

On the right side, there is a rectangular swatch showing the pigment applied to a surface. The swatch is divided into two sections, with the top showing a lighter shade of violet and the bottom showing a darker shade, indicating different binders or methods of application. A label on the swatch reads "COBALT VIOLET" and describes the upper section ("above - size") and the lower section ("below - linseed oil"). Beside the painted sample, there is a small reference scale for color and measurement.

Anthropic Claude

Created by anthropic.claude-3-haiku-20240307-v1:0 on 2025-06-14

The image shows a bottle of Cobalt Violet pigment and a corresponding color sample. The bottle is labeled "Cobalt Violet, Co3(PO4)2 or Co3(AsO4)2, Lefranc, Paris 1927, EWF". The color sample is a rectangular block of a vibrant purple hue. The image also includes a ruler for scale.

Created by us.anthropic.claude-3-opus-20240229-v1:0 on 2025-06-14

The image shows a small glass vial containing a bright cobalt violet colored liquid or powder. The vial has a black cap and a label indicating it contains "Cobalt Violet Co3(PO4)2 or Co3(AsO4)2" from "Lefranc, Paris 1927, EWF".

Next to the vial is a larger rectangular purple paint swatch. The label below the swatch specifies "COBALT VIOLET" and notes "above - size, below - linseed oil", indicating the top part of the swatch is the pigment alone while the bottom part shows it mixed with linseed oil as a paint medium.

The pigment has a vivid, intense purple hue. Displaying it alongside the raw pigment in the vial provides a clear demonstration of this historic artist pigment's color properties.

Created by us.anthropic.claude-3-5-sonnet-20241022-v2:0 on 2025-06-14

This image shows a historical pigment sample of Cobalt Violet from 1927, produced by Lefranc in Paris. The pigment is displayed in two forms: a glass bottle containing the powdered pigment (marked with the number "3"), and a color swatch card showing the pigment's appearance. The bottle has a black cap and is labeled with the chemical formula "Co3(PO4)2 or Co3(AsO4)2". The color swatch demonstrates two different applications of the pigment - one appears to be the pure pigment (above) and one mixed with linseed oil (below), creating slightly different shades of violet. There's also a measurement scale visible on the right side of the image. The overall presentation appears to be part of a pigment archive or collection documentation.

Meta Llama

Created by us.meta.llama3-2-11b-instruct-v1:0 on 2025-05-28

The image presents a comprehensive display of a color sample, featuring a bottle and a color card. The bottle is positioned on the left side of the image, while the color card is situated on the right.

  • Bottle:
    • The bottle is made of clear glass or plastic.
    • It has a black cap.
    • A label is wrapped around the neck of the bottle.
    • The label contains the following information:
      • "COBALT VIOLET"
      • "Co3(PO4)2 or Co3(AsO4)2"
      • "Lefranc, Paris 1927, EWF"
    • The number "3" is written in white on the bottom of the bottle.
  • Color Card:
    • The color card is rectangular in shape.
    • It features a color sample of the same shade as the bottle.
    • The color sample is divided into two sections:
      • The top section is a lighter shade of the color.
      • The bottom section is a darker shade of the color.
    • The color card includes the following information:
      • "COBALT VIOLET"
      • "above - size below - linseed oil"
  • Ruler:
    • A ruler is placed vertically along the right edge of the image.
    • The ruler has markings for measuring lengths in centimeters.
    • The ruler is used to provide a scale for the color card.

In summary, the image showcases a color sample of Cobalt Violet, presented in a bottle and on a color card. The bottle contains a small amount of the color, while the color card displays a larger sample with varying shades. The ruler provides a scale for measuring the size of the color card.

Created by us.meta.llama3-2-90b-instruct-v1:0 on 2025-05-28

The image shows a small glass jar with a black lid, containing a purple substance. The jar is labeled with a beige paper strip that reads "COBALT VIOLET" in black text, followed by "Co3(PO4)2 or Co3(AsO4)2" and "Lefranc, Paris 1927, EWF". The number "3" is written in white on the bottom of the jar.

To the right of the jar is a rectangular piece of paper with a purple color swatch at the top and a beige section at the bottom. The beige section contains the text "COBALT VIOLET" in black, followed by "above - size below - linseed oil".

A ruler is placed to the right of the paper, with measurements ranging from 10 to 40. The background of the image is white.

Amazon Nova

Created by amazon.nova-lite-v1:0 on 2025-05-27

The image displays a small, cylindrical glass bottle with a purple powder inside, labeled "COBALT VIOLET". The bottle has a black cap and a paper label that reads "Co2(PO4)2 or Co3(AsO4)2 Lefranc, Paris 1927, EWF". Adjacent to the bottle is a rectangular box with a purple gradient on top and a beige base, labeled "COBALT VIOLET above - size below - linseed oil". A white ruler with measurements in centimeters is placed to the right of the box. The image is set against a plain white background.

Created by amazon.nova-pro-v1:0 on 2025-05-27

The image features a small bottle and a rectangular box with a label on it. The bottle is filled with a purple substance. The bottle has a black cap and a label on the side that reads "COBALT VIOLET" and "Lefranc, Paris 1927, EWF". The rectangular box is labeled "COBALT VIOLET" and "above - size below - linseed oil". A ruler is placed on the right side of the image.

Google Gemini

Created by gemini-2.0-flash-lite on 2025-05-01

Here's a description of the image:

Overall Composition:

The image is a studio shot, showcasing a glass jar of cobalt violet pigment next to a color sample card. The items are set against a plain white background. A color test strip is visible on the right side.

Main Elements:

  • Jar of Cobalt Violet: A clear glass jar, labeled with a black cap, holds a fine, vibrant purple powder. A paper label is wrapped around the jar. It contains text information, including the pigment name, chemical formulas, manufacturer, and year. A large "3" is visible at the bottom of the jar.
  • Color Sample Card: To the right is a rectangular card showing different shades of cobalt violet. The card is divided into three sections, each presenting a slightly different shade of the purple pigment. The top section is the lightest shade, the middle section is darker, and the bottom is the darkest. There is text on the bottom of the card that reads "COBALT VIOLET," followed by instructions: "above - size" and "below - linseed oil."
  • Color Test Strip: a white strip on the right with grey squares and marks for measuring.

Color and Tone:
The primary color is a vibrant violet/purple hue, reflecting the color of the pigment. The lighting is even and soft, which helps to highlight the color variations on the card and in the jar.

General impression:

The image appears to be a photograph of a pigment used in art, likely a color sample or a display of a historical art supply. The overall presentation is clean, with a focus on the vibrant color of the cobalt violet.

Created by gemini-2.0-flash on 2025-05-01

The image shows a vintage-looking presentation of Cobalt Violet pigment. On the left is a small, clear glass bottle filled with the powdered pigment. The bottle has a black lid and is labeled with a cream-colored paper, reading: "COBALT VIOLET, Co2(PO4)2 or Co3(AsO4)2, Lefranc, Paris, 1927, EWF." A large number "3" is printed directly onto the bottle below the pigment.

To the right of the bottle, there's a rectangular card. The card has three color swatches of Cobalt Violet, each in a slightly different shade of violet. The bottom portion of the card is cream-colored with the words "COBALT VIOLET" in uppercase letters. Below that, it reads "above - size" and "below - linseed oil."

A color scale is placed to the right of the card.

The backdrop is a neutral, light gray or white, which helps the colors and details of the objects to stand out. The overall presentation suggests a historical or archival display of art materials.

Mistral Pixtral

Created by us.mistral.pixtral-large-2502-v1:0 on 2025-06-09

The image shows a sample of cobalt violet pigment, which is a vibrant purple color. The pigment is contained in a small glass jar with a black cap. The jar has a label that provides information about the pigment:

  • The label reads "COBALT VIOLET" at the top.
  • Below that, the chemical formulas are listed: "Co3(PO4)2 or 8Co3(AsO4)2".
  • The label also mentions the manufacturer: "Lefranc, Paris".
  • The year "1927" and the initials "EWF" are also noted on the label.
  • The number "3" is printed in white on the bottom of the jar.

Next to the jar, there is a card with two sections:

  • The top section is painted with the cobalt violet pigment, showing its color.
  • The bottom section is labeled with text:
    • "COBALT VIOLET" at the top.
    • "above - size" indicating that the top painted section shows the pigment's color.
    • "below - linseed oil" indicating that the bottom section might show the pigment mixed with linseed oil, though this section is not visible in the image.

A ruler is placed next to the card for scale, showing measurements in centimeters. The card appears to be approximately 40 cm in height and 20 cm in width.

Qwen

Created by Qwen/Qwen2.5-VL-7B-Instruct on 2025-08-08

The image shows a small glass jar labeled "COBALT VIOLET" with a chemical formula (Co₃(PO₄)₂ or Co₃(AsO₄)₂) and the text "Lefranc, Paris 1927, EWF" on a beige label around the jar. The jar is filled with a vibrant purple powder. To the right of the jar is a color swatch labeled "COBALT VIOLET," with the upper portion displaying the color "above size" and the lower portion labeled "below linseed oil." The background is plain white, and there is a small gray scale chart on the far right, presumably for measuring the color intensity.

Created by Qwen/Qwen2.5-VL-72B-Instruct on 2025-08-08

The image shows a sample of cobalt violet pigment used in painting. On the left side of the image, there is a small glass jar with a black lid containing the pigment. The jar has a label that reads "COBALT VIOLET Co₃(PO₄)₂ or Co₃(AsO₄)₂ Lefranc, Paris 1927, EWF." The label also has the number "3" on it.

On the right side of the image, there is a rectangular sample card with two distinct sections. The top section is a lighter shade of purple, labeled "above - size," and the bottom section is a darker shade of purple, labeled "below - linseed oil." The card is labeled "COBALT VIOLET" at the bottom.

To the far right, there is a small color scale or ruler, which appears to be a gray scale with numbers from 10 to 40, likely used for comparing the shades of the pigment. The overall presentation suggests that this image is used for documenting the characteristics and applications of cobalt violet pigment.

Text analysis

Amazon

COBALT
COBALT VIOLET
VIOLET
EWF
oil
30
3
or
40
1927, EWF
20
10
1927,
above - size
below - linseed oil
2
(PO4)
below - linseed
CO3 (PO4) 2 or
Lefranc,Peris
CO3
803(AS64)?

Google

COBALT VIOLET Cog (P04)2 Or Lefranc,Paris 1927, EWF 8- COBALT VIOLET above size below linseed oil 1 3 2
COBALT
VIOLET
Cog
(P04)2
Or
Lefranc,Paris
1927,
EWF
8-
above
size
below
linseed
oil
1
3
2