Function parseColorRGB

parseColor without the alpha — the three-component form §68's light colours and §59's emissive take.

const authored = parseColorRGB("#ffcc00");   // sRGB, 0…1
srgbToLinearRGB(authored, light.color);      // §60a: lights are linear-light
Copy

Accepts everything parseColor accepts, including strings that carry an alpha, and discards it: a light has no opacity, and refusing rgba(255, 0, 0, 0.5) here would make a shared palette unusable for lights. The discard is the documented behaviour, not a rounding of it.