I spend an outrageous amount of time trying to match colours; eventually I just give up and use something similar. I do try and create what I call ‘the reality illusion’ but I enjoy painting regardless. If the ‘reality illusion’ shows up I am very surprised and impressed. Colours should be supremely important for the ‘reality illusion’ but humans aren’t that good at matching colours, so I’m starting to wonder why I think it’s so important. Look up colour illusions on Google to see how prolific they are and how they work (actually you should Google ‘Color’ Illusions rather than the British spelling).
In a previous post I mentioned that I look for places on my painting to use whatever colour I’ve mixed that is on my brush. I can’t help but think that colour contrast has more to do with a life-like image than actual accurate colour since it is in comparison that colours are viewed. If you match a colour compared to another colour and it looks good there is no way to determine that it will still look good tomorrow than to compare it tomorrow. Today when I am comparing the colour, I might have had a good sleep, or not, and the colour of shirt I am wearing may contrast with the colour, or not. Many people will not believe that the colour of shirt I am wearing will have any effect on how I select a colour on my pallet but tests have shown that that is exactly what happens. So, if I select a colour today and a slightly different colour tomorrow, then I can pick whichever colour I like and have done with it.