/*
hsla(120, 100%, 70%, 1.0) is rgb(40% 100% 40%)
hsla(120, 100%, 50%, 0.6) is rgb(0% 100% 0% / 0.6)
composite rgb values at 60% over white in sRGB = rgb(40% 100% 40%)
BUT if compositing is done with used values, in device RGB
you will get a mismatch on WCG screen
because the red and blue components will not be zero
and the green will not be 100%
*/
Test passes if you see a light green square.