Discussion
From RGB to L*a*b* color space
guidedlight: This article describes how to convert from the sRGB color space, not RGB.sRGB like Lab* is device independent so a transformation between the two is possible.RGB on the other hand is device dependent, and would therefore require a device ICC Profile to convert to Lab*.
thangalin: A practical application is pie charts, apologies for the XSLT:* https://repo.autonoma.ca/repo/delibero/blob/HEAD/source/xsl/...* https://repo.autonoma.ca/repo/delibero/blob/HEAD/source/xsl/...An example pie chart is on page 33, section 9.2.3:* https://repo.autonoma.ca/repo/delibero/raw/HEAD/docs/manual/...* https://i.ibb.co/ymDLcPNj/pie-chart.png (screenshot)The colours are harmonious, visually distinct, and not hard-coded to a fixed number of slices.
127: To people who aren't yet aware also: https://bottosson.github.io/posts/oklab/
mattdesl: For those just learning about perceptual colour spaces, I’d recommend exploring OKLab which is simpler to implement and overcomes some of the problems of CIELab.https://bottosson.github.io/posts/oklab/
aparadja: If you ever need to generate a gradient between colors in any of your code, interpolating colors in the Lab color space is an awesome option. A simple linear interpolation of the components gives impressively beautiful results.(Although, like several other commenters, I do recommend OKLab.)
