The hue of the short-wave end of the visible spectrum, evoked in the human observer by radiant energy with wavelengths of approximately380 to420 nanometers; any of a group of colors, reddish-blue in hue, that may vary in lightness and saturation.

• 蓝紫色可见光谱的短波端的颜色，通过辐射能量可在人体观察者身上产生，其波长约在380至420毫微米之间；一种略带红色的蓝色，亮度和色距可能不同