I love that illustration too, as well as the entire system of color allusions.
I'm not entirely sure how safir would perceive color as, since they are hexachromats — being able to perceive ultraviolet and two kinds of infrared light as well as red, green, and blue — a fair chunk of their color spectrum is unfathomable to the average human.
I do know, however, that their primary colors would be "far" (actually just a bit further than near; the Z type of cone cell that detects this light has a response band of 800-1100 nm) infrared, near (Y cone, 600-900 nm) infrared, red, (yellow and/or green), blue, and ultraviolet (X cone, 175-400 nm).
(Note that the exact response bands will almost certainly change between now and the mythical time of Finalization.)