This browser doesn't support specifying gradient colorspace, try Safari Tech Preview with Gradient Interpolation Color Spaces enabled or Chrome Canary with Web Experiements on.
Nice to know or be thinking about while scrolling:
These are 2 stop gradients only, specified in hex (sRGB, except 1 in LCH). Adding stops would change the interpolation demonstration.
Specifying colors in HD gamuts would change results. One set of gradients tries intentionally to be gamut wide.
Requires CSS gradient syntax supports specifying the colorspace
Many of the examples expose problem areas of spaces, and may not portray them in their best
Gradients can look different on an HD display where colors arent clipped to sRGB