Hmm ... Rhode Island seems like what you'd want, but I can argue that slavery was indeed a huge issue during the revolutionary period (though, admittedly, not as much as during the civil war).
Anyway, because I'm pedantic, and an anal-retentive engineer in training, let me proceed to over-analyze your question, and find ambiguity where no sane person would
Thus, my answer is: What is China? Seeing how you didn't specify a state in the United States of America, I must assume you meant the most general definition of the term, which is, basically, a soverign entity (like a country). Now, the Chinese aren't white, so I assume that classifies them as "colored." I don't know the exact timeline of things, so I could be wrong, but I think China is one of the earliest countries to have an organized military. Also, hate to be picky again (actually, no I don't
), but slavery was an issue back then too. I suppose it depends on how big is "huge." Oh well ... since I was beaten to the predictable answer, I'll stick to this one
Stephen