I dont think it matters what colour your clothing is, i've got all sorts, DPM, real tree and lots of just plain green and brown clothing its field craft that counts, at the end of the day deer and most other animals see in monochrome so I doubt the colour or pattern really matters, sound, movement and smell are the main give aways.
On another note it seems to me that a lot of modern cammo types, real tree ect, only seem to suit one given type of environment, woodland, winter woodland, salt marsh ect and stick out like a sore thumb in places where the background doesn't match, also a lot of it seems very shiny to me, especially stuff from rivers west, and even the fleece stuff really reflects sunlight and can look white if it catches the sun.
There is also the thing about never washing your cammo stuff here as well, quite a lot of washing powders have UV reflective addatives to make your whites whiter than white, wash a pair of DPM trousers in Daz then put them under a UV light, a lot of animals can see into the UV spectrum even though they see in black and white so there isn't much point going into the woods head to toe in cammo if its glowing like a light bulb.
Sorry to waffle, but as Cooter says dark green or brown clothes and good field craft will cover almost everything.
Cheers
Hyperion
Edit for spelling mistakes