If your horse is double recessive, and bred to a mare with double recessive, you have a 100% chance of the recessive gene.
If bred to a mare with both dominant and recessive genes, you have a 75% chance of the dominant gene, and 25% chance of the recessive gene.
If bred to a mare with double dominant gene, there is no way for the recessive gene to be shown.
So, if your horse's color is recessive, you'd have to find out the dominance of the other colors (I'm not sure about the colors you mentioned) and then check with my description above.
You can use your basic Punnett Square (
http://en.wikipedia.org/wiki/Punnett_square) to figure this out :)