blue hair
Hair that is colored blue.
Due to the subjective nature of color judgment and other factors (such as the lighting on the characters) there is an overlap between this tag, and the aqua hair tags. Due to blue often being the undertone used for black hair and white hair, there is an additional overlap with those tags too.
Examples
另请参见
由于色彩判断的主观性质和其他因素（例如字符的照明），此标签与Aqua头发标签之间存在重叠。由于蓝色通常是用于黑发和白发的底色，因此这些标签也有其他重叠。