The term 'TAN BROWN COLOR' can be summarized by two crossword solutions: ECRU (4 letters) and BEIGE (5 letters). ECRU is a light brown color, often described as off-white or cream. It is derived from the French word ECRU, meaning raw or unbleached. BEIGE is a pale yellowish-brown color, often used to describe a range of colors from light tan to light grayish-yellow. It is derived from the French word BEIGE, meaning natural wool that has not been dyed.