Yes it is -- it means "brown." It also means "chestnut." The other word for brown, brun, is more common than marron, but you almost always use marron when you're talking about brown eyes.
marron is brown in French.
The color "marron" in French translates to "brown" in English.
Marron
marron and yellow
To the brown color (#964B00)
In French, "marron" can be either masculine or feminine depending on its usage. As a color, "marron" is invariable and does not change for gender. However, when referring to a chestnut (as in the food), it is masculine ("un marron"), while when referring to a chestnut tree, it is feminine ("une marronne").
Marron PelletsMarron Pellets
brown,marron,brunette, sometimes even referred to as a chocolate colour
marron (colour) : brown marron (fruit) : conker (and chestnut when prepared to be eaten)
The colour maroon, a word the French use to refer to brown, translates in French as Bordeaux.
What color are your eyes? Marron, azul, verde, negro
Kevin Marron is 5' 10".