Creates a color from HSLA (hue, saturation, lightness, alpha/opacity) values.
Hue— Ranges from 0 to 1. 0 is red, 1/3 is green, and 2/3 is blue.
Saturation— Ranges from 0 (grayscale) to 1 (fully colorful).
Lightness— Ranges from 0 (black) to 0.5 (fully colorful, depending on
Saturation) to 1 (white).
Opacity— Ranges from 0 (fully transparent) to 1 (fully opaque).
Keywords: alpha, channel, chroma, tone, transparent