Calculate black / white as the better text on top of a given color

[schlosser]

Not sure what algorithm to use. @jhil, any ideas?

[jhil]

might this help? https://github.com/SlexAxton/css-colorguard

[schlosser]

Apparently, R*0.299 + G*0.587 + B*0.114 is a good algorithm for calculating brightness in a range from 0 to 1, so then we could just split at 0.5.

[jhil]

Cool!

[1j01]

Or you can train your own algorithm: https://harthur.github.io/brain/
Serious recommendation – the results can be really good, and there's no dependency.
(You have to pass the resulting function an object {r, g, b} with values in the range 0 to 1.)