export class LabColor { /** * * @param l 0 to 100 * @param a -128 to 127 * @param b -128 to 127 * @returns */ labToRgb(l: number, a: number, b: number): {r:number, g:number, b:number} { let y = (l + 16) / 116; let x = a / 500 + y; let z = …