pkg-components/stories/molecules/Inputs/InputColor/utils/hsvToHex.ts

export const hsvToHex = (h: number, s: number, v: number) => {
  s /= 100;
  v /= 100;

  const c = v * s;
  const x = c * (1 - Math.abs(((h / 60) % 2) - 1));
  const m = v - c;

  let r = 0, g = 0, b = 0;

  if (h < 60) [r, g, b] = [c, x, 0];
  else if (h < 120) [r, g, b] = [x, c, 0];
  else if (h < 180) [r, g, b] = [0, c, x];
  else if (h < 240) [r, g, b] = [0, x, c];
  else if (h < 300) [r, g, b] = [x, 0, c];
  else [r, g, b] = [c, 0, x];

  const toHex = (num: number) =>
    Math.round((num + m) * 255)
      .toString(16)
      .padStart(2, '0');

  return `#${toHex(r)}${toHex(g)}${toHex(b)}`
}