Yes, hue is a Scrabble word!
...and is worth 6 points in Scrabble, and 6 points in Words with Friends
hue
Verb
1. Take on color or become colored
2. Suffuse with color
Noun
1. The quality of a color as determined by its dominant wavelength
What Scrabble words can I make with the letters in hue?
2 Letter Words