Blue is already a primary color. There are no two colors that can make blue.
Boron is the trace element in blue diamonds.
True cerulean blue is a mixture of the primary color blue and a little bit of green that makes it darker (or primary color blue mixed with one part primary color blue and yellow).
The three primary colors are red, blue, and yellow, blue+red=purple red+yellow=orange yellow+blue=green
red, yellow and blue are primary colours, if you mix them together you will get some of the secondary colours, then mix the secondary colours with secondary colours and so on...
No color will mix with green to get blue. Blue is a primary color when mixed with another primary color, yellow, produces green.
This element is cobalt.
Yellow, a primary color, mixed with blue, another primary color, makes green.
The element is boron.
Boron is the trace element in blue diamonds.
Blue is a primary colour so it can't be made with other colours.
You can't make blue. It is a primary color used for mixing.
red and purple blue is a primary color; nothing 'makes' blue, it can not be made from mixing two or more colors
Blue is one of the three primary colors that can't be produced by mixing other colors. The primary colors are red, yellow and blue. Nowadays, blue is synthetically produced.
Blue is a primary color and as such is not made up of other colors. It is simply blue Blue is not a primary color of pigment. It was once thought to be a primary color, but it is secondary. Magenta and cyan are the primary colors mixed to make blue. Blue is a primary color of light
Blue can't be made because it's a primary colour. Red and blue makes purple.
If the the number of electrons on the shell are stable.
Nothing can make blue. Blue is a primary color and cannot be mixed from any other combination of colors.