Red is a primary color. There no colors that can be mixed to get red.

Red's a primary color. It's a based used to make other colors not the other way around.

Red's primary....it can't be formulated ::))

Yellow and Magenta. Quick lesson in primary colours: First, we look at light: No light = Black. Primary colours of light: Red, Green, Blue Red + Blue = Magenta Red + Green = Yellow Blue + Green = Cyan Red + Blue + Green = White Look very closely at an old TV or old low resolution computer monitor and you will be able to see this. Now look at textiles (or grab a white piece of paper and some textas). Clean slate = White. Primary colours = Cyan, Magenta, Yellow Magenta + Yellow = Red Magenta + Cyan = Blue Yellow + Cyan = Green Magenta + Yellow + Cyan = Black Coloured objects in white light: Magenta absorbs green light but reflects red and blue. Yellow absorbs blue light but reflects red and green. Mix the two together and the blue and green get absorbed and only red is reflected. From here you can work out why the primary / secondary colours of light / textiles are opposite. Yeah, I too was originally taught that the primary colours were red, blue and yellow but then I learnt a bit more later on. Look at the little squares on your cereal packs showing the colours used to ink the pictures: Yellow, Cyan, Magenta and Black (in practise it's easier / cheaper to just use black ink rather than mix your own). Look at the ink cartridges for colour printers: Yellow, cyan, magenta and black. Look at everything to do with coloured light - TVs, computer monitors - all red, green blue. Apparently it is possible to use different colours as 'primary' colours but I haven't studied that far. Hope you had fun. :)

You can not mix red.