shi, and urg, i'm terrible with colors also. i mean i could/have matched some awful colors at times. my solution was to just go with the ones in a multicolor fabric. i'll pulll the colors out of it, and or match with white.
or, i know fall colors, or go with variations of the same color. trying to remember that i'm using either bold colors, or subdued colors. one or the other.
And of course, you can copy someones color combinations that you have seen that look nice together.