The Collaborative International Dictionary of English v.0.48:
Flaxen \Flax"en\, a. Made of flax; resembling flax or its fibers; of the color of flax; of a light soft straw color; fair and flowing, like flax or tow; as, flaxen thread; flaxen hair. [1913 Webster]WordNet (r) 3.0 (2006):
flaxen adj 1: of hair color; pale yellowish to yellowish brown; "flaxen locks" [syn: flaxen, sandy]