This is a Ralph Lauren pattern called Balmoral Hunt and you can buy this right now on Ebay. This is very nice, would make a great table done in black and red. I don't know when this was discontinued but it can't be that old.
This is a newer pattern called Opening Day. You can buy this new on the Internet.
This is an older pattern, again, found routinely on Ebay from Royal Doulton. Called the Simpson Fox Hunting Series. You could pair this with white dinner plates or chargers and use lime green/light blue and red accents. Lovely!
This is a newer pattern and I love it but it is pricey. Looks very Hermes to me. Absolutely LOVE the soup tureen.
This one is a newer pattern called Perfect Day. Very cute indeed.
These are Lizi Ruch Gold rimmed plates. Put these with some bamboo or rattan chargers, Hermes orange napkins.
There are lots of horse and equestrian-themed glassware out there, hard to find, rare, somewhat expensive, but it's there. Much of it is from the 1920's and 30's. This is from Hazel Atlas. You can find this kind of thing on Ebay much of the time.
You can also brighten your table with other accents like napkin rings. Try these on for size:
Have I inspired you to put together that Preakness or Belmont party? It's not too late!