Gray
Gray Color
noun, の adjective
Ash color tends to be a kind of gray color, wouldn't you say? That makes this word gray (or grey, depending on where you're from).
This is a jukugo word that uses the kun'yomi readings of the kanji. You should be able to read this on your own.
この灰色のお守りは、悪い気を追い払ってくれます。
This gray charm drives out evil spirits.