# Alter saturation or brightness of a color

I'm using xcolor.sty's nifty wheel function to define a color scheme based on a single base color. So, for example:

``````\definecolor{base}{HTML}{AADD96}
\colorlet{complement}{base>wheel,1,3}
``````

makes `base` a pale green color, and `complement` a similarly pale blue (1/4 of the way round the color wheel).

Is there a way to similarly define colors by changing the saturation or brightness of an existing color?

-

You could use `\definecolorseries`:
``````\definecolor{base}{HTML}{AADD96}
will let you use `moresaturated!![1]` for a somewhat more saturated colour, `moresaturated!![2]` for an even more saturated one, and so on. (But beware overflow: once the saturation reaches 1, it's reset to zero. Here `moresaturated!![4]` is less saturated than `base`.)