R-cran-colorspace

Color Space Manipulation

Carries out mapping between assorted color spaces including RGB, HSV, HLS, CIEXYZ, CIELUV, HCL polar CIELUV, CIELAB and polar CIELAB. Qualitative, sequential, and diverging color palettes based on HCL colors are provided.

WWW https//cran.r-project.org/web/packages/colorspace/