If you mean what colors produce a buckskin, then typically a bay, brown, or black horse is bred to a palomino, cremello,perlino, or another buckskin to try and get the diluted buckskin color.
A buckskin gets it's coloring from the cream gene (Cr), a bay horse with a Cr gene is a buckskin. A bay itself is a modification of the black coat color gene (Ee or EE) with the agouti gene (A),...
Buckskin is the name for a hair coat of horses, and refers to the a colour that resembles some shades of tanned deerskin. Similar colours can also be found in some breeds of dog and are also called...
There's no way to guarantee that any two horses will produce a buckskin, to the best of my knowledge. To produce a buckskin, however, at least one parent must carry the cream gene. The cream gene is...