What are the names of gray pigments?

The characters of Eight Grey are: Moon Grey, Bud Yellow Grey, Light Crab Grey, Light Blue Grey, Red Bean Paste, Grey Bean Green, Rice Camel and Lan Lian.

Others:

Olive brown, light princess, eggshell, dark blue gray, lotus root gray, tile gray, deep crab gray, deep tile gray, light blue gray, wine red, coffee, sauce red, eggplant color, gray green, wool blue, sorghum red, deep crab green, Chou-heung, light tile gray, light coffee, light gray green, bean green, gray powder green, pearl white,

Fish back grey, lilac, turtle back grey, marble grey, light bean green, dark grey green, emerald grey, snow blue, blue grey, brown grey, rat grey and sparrow grey.