How many letters does the top answer for “of a yellowish brown color” have?

The most common answer is khaki (5 letters).

Crossword clue: of a yellowish brown color

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

khaki 5 letters wn-def

a sturdy twilled cloth of a yellowish brown color used especially for military uniforms

a yellowish or redish brown color. 75% similar → sorrel

of a light brown or yellowish brown color 75% similar → hazel

of a light yellowish-brown color 75% similar → tan

of a yellowish color. 67% similar → lutescent

of the color of a fawn; light yellowish brown. 60% similar → fawncolored

a dark brown color 50% similar → mocha

make brown in color 50% similar → embrown