Including the black? Or just the other three?
Edit: Disregard, saw the palette on the bottom (and nearly missed a color.)
Well since it's also a concept test rather than just for pure competition I'm thinking you'd like a wide sample of images, may we enter more than one?
Heh! Yeah, submit as many as you like. We may choose more than one by the same person. This is purely for fun, so we aren't going to be picky and only select one from each person. We'll pick our favorites for the vote, and let you all choose from there.
I'll probably be submitting my own, just to provide examples. Mine won't be part of the contest, though. I already know what I can come up with, but I want to see what more creative minds can do with these colors. 
Here's a first run at it:
Omega-Fire
Deep space astronaut James Steele exploration vehicle collided with an alien research craft. The artificial intelligence aboard the alien craft attempted to reconstruct itself from what remained. Ultimately the alien craft became part human. Steele's overriding desire to return home has brought him back to earth. Steel is obsessed with gathering information (a remnant of the alien programming) and has an incredible amount of storage memory. He manipulates solar power of the craft in the form of fire and thermal heat (he's a Fire/Thermal controller). He is in essence neither Steele nor the alien AI, but a new creation--dim memories of his previous lives haunt him even as he remains true to his heroic nature. He felt comfortable among the heroes of Paragon City and has made a home for himself there gathering information to understand himself and this world--both familiar and alien--he calls home.
Haha! I love it! I've never seen the colors on a full tech suit before. And the bio is a nice touch.
Keep 'em coming!
I'm a little unclear on the requirement/restriction of the color placement your requesting, could you list the specifics in a little more detail please?
as am I
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We're testing out a new set of colors for our SG, The Codex, and we'd like your help! Use this color palette to design a brand new hero or villain. Entries must use ALL of the colors, using just the black and gray for the chest and legs. Entries must be submitted by June 25, 2008.
Myself and Lion-Hearted will take on the roll of preliminary judges. Our favorite 5 will be put in a poll, and we'll have popular vote decide the winners. The top 3 will be featured on our costume page. If the winners play on Virtue, we can also provide them with a handsome amount of influence, but we encourage everyone to play regardless of server.
Get cracking, and lets see what you gurus can come up with!