My horses color is navy blue with grey and burgandy accents. Her halter, lead rope, both saddle pads, med. Weight and light weight blankets, and both coolers are all navy. Her splint boots would also be navy but I had to get purple because of barn colors. =/ O well. Haha I might have some other navy stuff for her, but I can't remember.
Luna, a little dark bay (no white, she's reg. As black) is in purple + silver
And Darby, a flashy pale chestnut (3 stockings and a blaze) is in hunter green. He isnt a red or warm coloured chestnut, he is more beige than red.
I'm not one who has to have everything matching, or really a color theme for each horse. However, I am a big fan of fun and bright colors in general.
My Palomino wore blue most of the time. I love yellow though, and it's the worst possible color with palomino, so now that I bought a new horse that's seal brown (nearly black) I'm using some of that. I made him blue and yellow reins, and just bought yellow polos :). He's also super cute in blues, and I guess burgundy is my preferred "conservative" color.
You know the Amigo blankets that come in all the unusual colors? Love them! My horse has one red and one baby blue (and I would love the green). I love seeing him out in the field like that...his navy blanky bores me and makes me sad.