This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The characteristic of being brown.

n. The quality or state of being brown.

n. The quality of being brown.

n. an orange of low brightness and saturation

"Hers were brown, but the brownness faded and spread into peach in gaps between each finger."

spectral color    chromatic color    spectral colour    chromatic colour   

mocha    sepia    burnt sienna    taupe    coffee    light brown    olive brown    deep brown    mahogany    chestnut   

body politic    semidark    shopwindow    night    apostolate    half-dark    thou'st    plague-spot    floodwater    croft