Dead bodies do get a grayish blue/purple hue because blood pools in the capillaries and the body starts to decompose. It's not smurf blue, but it's not a pleasant shade.
尸体会呈现出灰蓝色或紫色，因为血液在毛细血管中淤积，尸体开始腐烂。它不是蓝精灵的蓝色，但也不是令人愉快的色调。
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Shade
Blue