I like the name, but I don't believe org is strong enough to hold such keywords. orgs sell for $xx or $xxx with popular keywords, but anything else they are just not so valuable.
In fact, consider how much "CustomColors" would be worth on a .com. Possibly ok for a brandable, but not worth a great deal means the org is worth very little.
There are many other alternatives similar to yours to hand reg or buy on aftermarket very cheap. This being a brandable means someone could probs grab a cheap or even hand reg in the .com for something similar.