Get a quality cover from a specialist and the color wont matter b/c it will breath and fit right. If it is red, burgandy, or black, not too much difference. I have a black cover now from Evolution Covers -- he is awesome:

[email protected]
Cory Anderson
Evolution Covers
4109 161st ST SE
Mill Creek WA 98012

For $800 two years ago, i got a cover that keeps my boat clean while sitting on a lift w/o a canopy. Don't waste your money on anything else -- this thing is thick where it needs to be thick and breathes well.