What color do yellow and blue make?
Yellow and Blue make green.
Yellow and Blue make green, #00a833. That is the result in equal parts, mixing pigment rather than light - paint, ink and dye all behave this way.
Equal parts yellow and blue · #00a833
Change the ratio
Very little of a mix is ever half and half. Shifting the balance moves the result along the range between the two colours.
3 parts yellow, 1 part blue · #aae211
Equal parts · #00a833
1 part yellow, 3 parts blue · #1c7877
Lighter and darker
With white added - a tint · #80d499
With black added - a shade · #00651f
Why it works
Pigment mixes subtractively: yellow paint absorbs the wavelengths it is not reflecting, blue absorbs its own set, and green is what neither of them absorbed. This is why paint behaves differently from a screen, where light adds together instead.
Frequently asked questions
What color do yellow and blue make?
Yellow and Blue make green, #00a833. Mixed in equal parts that is the result you get with paint, ink or any other pigment.
How do I make the result lighter or darker?
Add white for a tint - here that gives sage. Add black for a shade, which gives green. Add white a little at a time, because it takes far less than people expect to shift a mix.
What happens if I use more yellow than blue?
Three parts yellow to one part blue gives lime. Reversing it to one part yellow and three parts blue gives teal instead.
Does this work the same way on a screen?
No. Screens mix light additively, so red and green light make yellow there. These results are subtractive - paint, ink, dye and pigment - which is what people mean when they ask what two colours make.