Lye
Lye is the common name of various alkaline solutions, including soda lye and potash lye. Lyes are used as cleaning products, as ingredients in soapmaking, and in various other contexts.
Read on WikipediaCaustic soda's dusty, alkaline grey, strong enough to strip wood bare.
Lye is a warm grey.
It can be described as warm, muted, greyish and dusty.
Set in black, because black reads best on it.
Lye is the common name of various alkaline solutions, including soda lye and potash lye. Lyes are used as cleaning products, as ingredients in soapmaking, and in various other contexts.
Read on WikipediaProper noun