<!DOCTYPE html> <html> <head> <title>Gradient interpolation</title> <meta name="fuzzy" content="maxDifference=1-2;totalPixels=0-10000"> <link rel="author" title="Mike Bremford" href="mailto:mike@bfo.com"> <link rel="help" href="https://www.w3.org/TR/css-color-4/#interpolation"> <meta name="assert" content="Test gradient interpolation in LCH works if the hue angles are not normalized to 0..360"> <link rel="match" href="gradient-eval-009-ref.html"> <!-- could be 007, this is the same but with 3600 added to each component --> <style> :root { --start: lch(60% 60 3670); --end: lch(60% 60 3890); --t: 0.5; --big: 131070000px; } .test { width: 100px; height: 100px; background: linear-gradient(in lch, var(--start) calc(var(--big) * (0 - var(--t))), var(--end) calc(var(--big) * (1 - var(--t)))); } </style> </head> <body> <div class="test"></div> </body> </html>