LCH color space

interface LchColor {
  l: number;
  c: number;
  h: number;
  alpha?: number | undefined;
}

function rgbToLch(color: Color): LchColor

import { rgbToLch, fromRgb } from '@temelj/color';

const lch = rgbToLch(fromRgb(255, 0, 0));
// { l: 53.24, c: 104.55, h: 40.0, alpha: undefined }

function lchToRgb(color: LchColor): Color

import { lchToRgb } from '@temelj/color';

const rgb = lchToRgb({ l: 50, c: 100, h: 180 });
// { red: 0, green: 117, blue: 136, alpha: undefined }

function labToLch(color: LabColor): LchColor

import { labToLch } from '@temelj/color';

const lch = labToLch({ l: 50, a: 25, b: 50 });
// { l: 50, c: 55.9, h: 63.43, alpha: undefined }

function lchToLab(color: LchColor): LabColor

import { lchToLab } from '@temelj/color';

const lab = lchToLab({ l: 50, c: 100, h: 180 });
// { l: 50, a: -100, b: 0, alpha: undefined }