1048     protected function lib_rgbahex($color) {
1058     protected function lib_argb($color){
1243     protected function lib_hue($color) {
1248     protected function lib_saturation($color) {
1253     protected function lib_lightness($color) {
1356     protected function lib_luma($color) {
1407     protected function toHSL($color) {
1457     protected function toRGB($color) {
1901     function lib_red($color){
1910     function lib_green($color){
1919     function lib_blue($color){
3260     protected function color(&$out) {  function in lessc_parser