I've had a few different colours. My first was Candy Gold and I like that a LOT. However I always longed for the black version so I bought one of those. However then I preferred the gold again, seems the grass is always greener etc.
I currently have a Candy Gold one again, I have a Jade Green brand new panel lying around somewhere which I quite fancy getting a full setup for. However my favourite is a colour not often seen here in the Uk as only 3 were ever imported in the 70s, namely because we didn't get the K0 version over here. However whilst I was working as an Honda mechanic the parts dept was having a clearout of all old stock for the CB500 and knowing I loved that model I was allowed to take what I wanted dirt cheap. I chose a brand new gold tank, side panels but it was only many months later when unpacking them that I noticed they are actually Starlight gold not Candy Gold. I love the Candy but the Starlight is just lovely to look at.
Unfortunately since US imports of the CB500 have been common these days I have spotted a few Starlight Gold CB500 around, so much for my exclusivity which I must admit I did kinda like.
So Starlight Gold for me.