Open michkowalczuk opened 6 months ago
@mbostock , What is the reason that you decided to use illuminant D50 instead of D65 in d3?
CIE standard illuminant D65 values are:
Xn: 0.950470, Yn: 1, Zn: 1.088830
You use the following D50 values: https://github.com/d3/d3-color/blob/71c7f100f9fa85a1c70fcbaeb5f803ee8db5620d/src/lab.js#L7-L9
For example chrome.js uses D65: https://github.com/gka/chroma.js/blob/cd1b3c0926c7a85cbdc3b1453b3a94006de91a92/src/io/lab/lab-constants.js#L6-L9
D50 is the illuminant used in CSS for lab() / lch() colors, as well as in graphics applications such as Adobe Photoshop. See also: https://github.com/gka/chroma.js/issues/278
lab()
lch()
@mbostock , What is the reason that you decided to use illuminant D50 instead of D65 in d3?
CIE standard illuminant D65 values are:
You use the following D50 values: https://github.com/d3/d3-color/blob/71c7f100f9fa85a1c70fcbaeb5f803ee8db5620d/src/lab.js#L7-L9
For example chrome.js uses D65: https://github.com/gka/chroma.js/blob/cd1b3c0926c7a85cbdc3b1453b3a94006de91a92/src/io/lab/lab-constants.js#L6-L9