If your question is "what colors cannot be created through mixing" the answer would be blue, red and yellow. These three colors are Primary colors, they are used to create Secondary colors, such as green, orange, and purple. Then, by mixing secondary and primary colors you can create Tertiary colors, such as red-orange, blue-green, etc. The Tertiary colors then mixed with either Primary colors or Secondary colors create the rest of the color wheel.
You cannot mix anything to get red. Red is what is known as a 'primary' colour and cannot be made by mixing others. Another primary colour is blue. You cannot mix anything to get red except for using magenta and yellow -although this produces more of an orange/brown.
You cannot mix anything to any color to get black because black is the absence of color.
Red is a base colour. You cannot mix it from other colours.
red is a primary colour, so you cannot mix colours to get red.
You cannot make the colour red by mixing other colours, it is a primary colour so it is used to create other secondary colours
It's lime green, blue is a primary colour, it cannot be derived from others.A brownish color.
if you mix the primary colour red, withe the secondary colour orange, you will get the tertiary colour red-orange.
Mix a royal blue with a bit of black to make navy.
It Makes the Colour Orange
You cannot mix grey with a single colour to form yellow. Yellow is made by mixing green and red. The addition of grey would render a dark shade of yellow.
if you mix orange and pink you get a coral.
You would mix it with yellow, it's complimentary colour. Whenever you want to make the colour brown, just mix it with a complimentary colour. (Purple + Yellow, Red + Green, Orange + Blue.)