Artoria2e5

// This is just https://bottosson.github.io/posts/gamutclipping/ crudely translated to TS

type Lab = { L: number; a: number; b: number };
type RGB = { r: number; g: number; b: number };
type sRGB = { r: number; g: number; b: number };

function linear_srgb_to_oklab(c: RGB): Lab {
  const l = 0.4122214708 * c.r + 0.5363325363 * c.g + 0.0514459929 * c.b;
  const m = 0.2119034982 * c.r + 0.6806995451 * c.g + 0.1073969566 * c.b;
  const s = 0.0883024619 * c.r + 0.2817188376 * c.g + 0.6299787005 * c.b;