hueToRGB

Low-level helper used internally by hslToRGB to convert a single hue component (with the precomputed p and q lightness terms) to its RGB value. It implements the standard hue2rgb step from the HSL to RGB conversion algorithm.

You usually do not call this function directly — reach for hslToRGB instead.

Importing

import { hueToRGB } from '@basmilius/utils';

Usage

import { hueToRGB } from '@basmilius/utils';

const lightness = 0.5;
const saturation = 1;
const q = lightness < 0.5 ? lightness * (1 + saturation) : lightness + saturation - lightness * saturation;
const p = 2 * lightness - q;

hueToRGB(p, q, 0.5); // => 1 (the "blue" channel for hue 0.5 fully saturated)

Parameters

Name	Type	Description
p	number	The 2 * l - q lightness term.
q	number	The combined lightness/saturation term.
t	number	The hue offset (h + 1/3, h, h - 1/3).

Returns

number — the channel value in 0..1.

Type signature

declare function hueToRGB(p: number, q: number, t: number): number;

See also

• hslToRGB