ACRYLICS

>>2346463
>Bear in mind that I want to learn how to get the right color by mixing ultramarine blue, cadmium red, cadmium yellow, titanium white and ivory black.
Pick up any color theory book and you are done
But in my experience you need a good selection of picments or your paintings will look like a photo without flash

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>>2346463

Try Gurney's Color and Light book. It's basically the best color theory book you'll get your hands on, because it goes beyond the RBY color wheel. It covers how paint and pigments behave which is something a lot of people don't ever discuss.

Also, all your colors will be darker when they are dried, and you will never get a color bright then the one straight from the tube.
You will also not be able to do all color mixes without a warm/cool of each color. White will cool colors, Ivory black will also cool them, whereas Mars black is a warm black and will warm colors. Using black on your colors, in addition, will generally dull them instead of making a richer black(think mixing darker colors, such as a burnt seinna and ultramarine blue/prussian blue).

This doesn't even get into tinting strengths, but I'm rambled on enough already. Get Gurney's book, and also make a sheet of paper where you test colors swatches, tints, mixtures, and document them so you can more easily replicate colors. I'd also recommend starting with cheaper student acrylics such as dickblick's brand.

>>2346463
>says understands color theory
>goes on to admit he can't control the output of the colors.

Learn more color theory in analog art. There's more there than you think.