Color for a chestnut?

I know there are probably a million of these questions but anyways. I am going to order a new saddle pad to fit under my saddle better than what I have. But I'm torn on the color. My gelding is a chestnut Appaloosa, he has 4 high white socks, a big wide blaze, as well as a spotted hindquarters that extends to his withers, he also has a white spotted stomach. His original color I was going to use for him is blue, he looks good in it but I also have a fly bonnet that is hunter green and it looks cute on him. I also think burgundy would look cute on him. I want to eventually do jumpers with him, and I want a less bold color that is more reserved mostly because he is so loud him self with all of his white I don't need a bright saddle pad color to draw attention to us. I was going to order all 3 since they are half off but, I don't see why I would need ever single one and I need to buy other things as well as this saddle pad.

I attached a picture of the saddle pad colors the blue I'm talking about is the more of a royal one, the hunter green is the 6th from the bottom, and the burgundy is second to last. My gelding is also more of a coppery penny type chestnut.