It's true that perceptual color spaces can be hard to work with, but they can help generate fairly good UI themes on-the-fly when used correctly. For UI, the ab

It's true that perceptual color spaces can be hard to work with, but they can help generate fairly good UI themes on-the-fly when used correctly. For UI, the ability to keep lightness constant regardless of chroma and hue is essential to preserve contrast. Likewise, hue is quite important to keep constant because it's the most prominent part of a dynamic theme. This leaves chroma as the remaining component that can be reduced to bring colors in gamut. UI examples: https://twitter.com/kdrag0n/status/1427822417313898498 https://twitter.com/kdrag0n/status/1427822417313898498 (using ZCAM, not Oklab or the new Oklab/Okhsv) / https://www.figma.com/file/ZeqPgO1RgA6eg8TMm7r8Ae/kdrag0n's-theme-engine%3A-new-color-model?node-id=0%3A1 https://www.figma.com/file/ZeqPgO1RgA6eg8TMm7r8Ae/kdrag0n's-... Full generated palettes: https://twitter.com/kdrag0n/status/1431100523894083589 https://twitter.com/kdrag0n/status/1431100523894083589 / https://www.figma.com/file/mZ6VxvsC2yN4zD9rDR4S2I/kdrag0n's-theme-engine%3A-full-palette-comparisons https://www.figma.com/file/mZ6VxvsC2yN4zD9rDR4S2I/kdrag0n's-... Yes, it's very easy to create colors outside the sRGB gamut boundaries, and you have to compromise something in order to bring them back in gamut. However, when working with colors programmatically, I'd still recommend considering perceptually-uniform color spaces instead of HSL/HSV-style models that are made to simplify interactive color picking.