Dull in color
I believe the answer is:
drab
'dull in color' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for drab that I've seen before include "Rather dull" , "Colourless kind of bard" , "Lacklustre" , "Dingy - shabby" , "Dreary and colourless" .)