from
Create an HCT color from hue, chroma, and tone.
Return
HCT representation of a color in default viewing conditions.
Parameters
hue
0 <= hue < 360; invalid values are corrected.
chroma
0 <= chroma < ?; Informally, colorfulness. The color returned may be lower than the requested chroma. Chroma has a different maximum for any given hue and tone.
tone
0 <= tone <= 100; invalid values are corrected.