blue

I am looking to repair a few marks in the navy blue gelcoat on my new to me 2007 230 Challenger SE. Does anyone happen to have any information on the navy blue color used on this hull? I have contacted Spectrum, Gelcote International, and BRP to obtain color codes, names etc and no one seems...

I've been wondering if using the standard 10% ethanol fuel will damage the engine if it's 87 octane? The manual says not to use any alcohol in the fuel. Also the oil in the injector tank has a slight blue cast to it. Is that the synthetic? I've only seen red and brown mentioned in this forum...