Got curious about this horse's color rating and tried to find her color in the search bar and came up with nothing. Ink noticed that the horse doesn't appear to exist in the search.

The color thing has happened to me a few times, where it pretends a color that definitely exists does not when I type it in and hit "exact match", but it never occurred to me before to check if the horse itself exists to the search bar.

I agree this has happened to me before to

Horses don't show up in search until a day after they are born or captured from my experience, maybe wait until tomorrow and see if this horse pops up then?

Ohh that makes so much sense!

Make sure you don't have a space at the end of the last letter or number! This kept happening to me and I realised my iPad makes a space after whatever I have pasted

Color rarities and I'd assume other color stats don't update until the game resets at 1:30 a.m. Because of this, if you breed a 1/1 and try searching the color on the same day as birth, it won't show up. The next day, once the color is in the system, things will work as normal.

So if you have a "ghost horse" like this, it's a 1/1.

This happens to me too.