Bitcoin is the color that people in the past thought about the ease of transactions without the intervention of a third person..which is very personal but every transaction is recorded..a masterpiece that is easy to understand, all who have time to understand it..with liquidity and various how to save and buy becomes a unique thing and its own enjoyment for the owner of this asset...some are to be stored..to buy and sell and some are even to transact with real money.. an convenience... which one do you like?
Not sure what do you mean by colour? it has no boundaries though, meaning every race, nationality, individual regardless of "colour" can transact. I guess that's the basic, buy and sell and trade and make profit. But there's no more to it, you need to be technical as well. That's why we hear a lot of people losing their money thru hacks or scams because they don't know how to protect their wallets. So it is very important to also take note of your security or even your privacy.