HSLuv

Port of HSLuv Color library to PHP by Carlos Cabo. V.2.0.0 Original by Alexei Boronine. https://github.com/hsluv

The math for most of this module was taken from:

http://www.easyrgb.com http://www.brucelindbloom.com Wikipedia

All numbers below taken from math/bounds.wxm wxMaxima file. We use 17 digits of decimal precision to export the numbers, effectively exporting them as double precision IEEE 754 floats.

"If an IEEE 754 double precision is converted to a decimal string with at least 17 significant digits and then converted back to double, then the final number must match the original"

Source: https://en.wikipedia.org/wiki/Double-precision_floating-point_format