brownest
braʊn
adjective
of a colour produced by mixing red, yellow, and blue, as of dark wood or rich soil.
an old brown coat
hazel,chocolate-coloured,coffee-coloured,cocoa-coloured,nut brown,brunette,mousy,sepia,mahogany,umber,burnt sienna,beige,buff,tan,fawn,biscuit,camel,café au lait,caramel,mushroom,bay,sorrel,dun,brindle,brindled,auburn,tawny,coppery,chestnut,bronze,russet