get the color name of the color that is exactly equal to the given hex color value as a 6-digit hex string . concode_field_sep int r concode_elem_sep int b concode_elem_sep Map<RGB,String> namedColors concode_elem_sep int g concode_field_sep int hashCode concode_elem_sep boolean equals concode_elem_sep Color getColor concode_elem_sep String getClosestNamedColor concode_elem_sep String getClosestNamedColor concode_elem_sep double calculateColorDistSq