30-seconds-of-code/javascript/snippets/hsb-to-rgb.md

title, type, tags, cover, dateModified

title	type	tags	cover	dateModified
HSB to RGB	snippet	math	houses-rock-sea	2020-09-18T14:25:07+03:00

Converts a HSB color tuple to RGB format.

• Use the HSB to RGB conversion formula to convert to the appropriate format.
• The range of the input parameters is H: [0, 360], S: [0, 100], B: [0, 100].
• The range of all output values is [0, 255].

const HSBToRGB = (h, s, b) => {
  s /= 100;
  b /= 100;
  const k = (n) => (n + h / 60) % 6;
  const f = (n) => b * (1 - s * Math.max(0, Math.min(k(n), 4 - k(n), 1)));
  return [255 * f(5), 255 * f(3), 255 * f(1)];
};

HSBToRGB(18, 81, 99); // [252.45, 109.31084999999996, 47.965499999999984]