<!DOCTYPE html> <html> <head> <title>Gradient interpolation</title> <link rel="author" title="Mike Bremford" href="mailto:mike@bfo.com"> <style> .test { width: 100px; height: 100px; background: red; background: lch(60% 60 0); } </style> </head> <body> <div class="test"></div> </body> </html>