 Morning class. Today we're going to have a look at color bias between two blues. Every color has a color bias towards one way or the other on the color wheel. It's harder to see though when you look at a color in its mass tone. So these mass tones, this is an ultramarine blue and a thalo blue, are quite similar. This one looks a bit darker but essentially they're reasonably close to each other. When we start to add white to them though, to create a tint, this is when you can really see which way the bias is on each pigment. So now you can easily see how green the blue on the right is compared to the one on the left, and this is just a very quick example of color bias. If you then want to mix a green between these, you'll see the difference. You can see how the green on the right is a lot brighter or a lot cleaner green, even though initially when we look at the mass tones this looks a lot darker. So you need to have a quick understanding of pigments to know how far you can push them or how you can create the actual tone you're after. Sometimes you don't have to add, you know, it's compliments to tone it down, you can just be using the wrong blue. Okay this is Will Kemp from Will Kemp Art School.