Mixing oil paint colors, Paul Foxton references full Munsell Color Chart It’s a hard position to argue with, but it doesn’t do us any favours and – most importantly – it doesn’t help us to get any better at mixing colours. We can always tell ourselves that we saw the colour that way. In fact, by this point, we’ll probably be so frustrated with trying to match the colour that we’ll either give up entirely or settle for whatever we’ve ended up with hoping it’s close enough. Without a framework to help us identify how this colour needs to change to get closer to our target, we’ll struggle. If we start to change the hue or the chroma to try to regain what we’ve lost there, like as not we’ll affect the value too and the whole process starts again. Now what? We have the right value, but again the wrong hue and the chroma has dropped again too. But the hue will still change because burnt umber is really a dark orange (Yellow/Red in Munsell terms). OK, so let’s try darkening our cadmium red with a colour closer to it. We’ll be quickly approaching that mud I was talking about earlier. So whilst we’re trying to change one of Munsell’s three dimensions of colour – the value – we’ll also be unintentionally changing the hue and the chroma at the same time. The black will also make the colour much less intense, much closer to grey – lower chroma in Munsell terms. I don’t know about you, but I don’t eat too many purple apples. But it means that as well as darkening the red, we’ll be changing its hue.Īnd because black is really blue, we’ll be pulling our nice clean red towards purple. But black oil paint is actually a very low chroma, very dark blue in pigment terms, although that’s not obvious to the unaided eye. What do we add? Well, we could try black. We need to darken it a bit, to lower the value in Munsell terms. Let’s also say that cadmium red is too light for the colour of this particular apple. We might start with a tube colour of cadmium red – a bright, middle value red. Well, Let’s say we want to match the colour of an apple, a red apple.
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