R.(RED)红 O.(ORANGE)橙 Y.(YELLOW)黄 G.(GREEN)绿 B.(BLUE)蓝 P.(PURPLE)紫 YG.(YELLOW GREEN)黄绿 BG.(BLUE GREEN)蓝绿 PB.(PURPLE BLUE)蓝紫 RP.(RED PURPLE)红紫 pR.(PURPLISH RED)紫调红 yR.(YELLOWISH RED)黄，缩写词基本为首字母大写形式，两种颜色则为两种单词首字母形式。