gtk-hsv-to-rgb (h s v)

h -- a double float hue component
s -- a double float saturation component
v -- a double float value component

r -- a double float red component
g -- a double float green component
b -- a double float blue component

Converts a color from HSV space to RGB. Input values must be in the [0.0, 1.0] range, output values will be in the same range.