AS3 colour manipulation library duplicating SASS colour functions. Currently only works with Hex values.
Darken - Easel.darken(colour,ratio);
Lighten - Easel.lighten(colour,ratio);
Mix - Easel.mix(colour1,colour2,[weight]);
Complement - Easel.complement(colour);
Desaturate - Easel.desaturate(colour,ratio);
Saturate - Easel.saturate(colour,ratio);
Grayscale - Easel.grayscale(colour);