Color space manipulations.
e.g. HSV2RGB, GrayScale, etc... returned in web-safe hex triplets.
Return web-safe hex triplets.
Convert HSV (hue, saturation, value) color space to RGB (red, green blue) color space.
Parameters
h : float
Hue, a number in [0, 360].s : float
Saturation, a number in [0, 1].v : float
Value, a number in [0, 1].
Returns
r : float
Red, a number in [0, 1].g : float
Green, a number in [0, 1].b : float
Blue, a number in [0, 1].