Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, G

Specification

?
\[\begin{array}{l} \\ x - \frac{1}{3} \end{array} \]
(FPCore (x) :precision binary64 (- x (/ 1.0 3.0)))
double code(double x) {
	return x - (1.0 / 3.0);
}
real(8) function code(x)
    real(8), intent (in) :: x
    code = x - (1.0d0 / 3.0d0)
end function
public static double code(double x) {
	return x - (1.0 / 3.0);
}
def code(x):
	return x - (1.0 / 3.0)
function code(x)
	return Float64(x - Float64(1.0 / 3.0))
end
function tmp = code(x)
	tmp = x - (1.0 / 3.0);
end
code[x_] := N[(x - N[(1.0 / 3.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x - \frac{1}{3}
\end{array}

No valid values. (more)