Why do pink slippers look black?

Pink is black because the fluorescence in this color system is very high, so it will be black.

When his lightness becomes low and the phosphor becomes this soft lotus root color, the whole color system appears very gentle and white.

Pink, usually pink. This color is widely used, and many kinds of flowers in nature are pink. In life, pink also represents cuteness, warmth, gentleness, youth, liveliness, love and cuteness. Pink is composed of red and white in gouache. The contrast colors are blue and tender green. Pink is light red, more precisely, it should be unsaturated bright red. It can represent sweetness, tenderness or innocence. Pink is also an essential color in crayons. Children like to decorate their works with pink when drawing. If you add a little white to pink, it will become another new color, collectively called pale pink or pale pink. If you add red and orange, it will become other new colors, collectively called orange red or orange red. Colors with romantic and lovely tones. Often used as the color of a person's blush or lips.