What color do blue and black make?
Blue and Black make black.
Blue and Black make black, #11263d. That is the result in equal parts, mixing pigment rather than light - paint, ink and dye all behave this way.
Equal parts blue and black · #11263d
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 blue, 1 part black · #1d436b
Equal parts · #11263d
1 part blue, 3 parts black · #060e17
Lighter and darker
With white added - a tint · #59697a
With black added - a shade · #08131f
Why it works
Adding black to blue makes a shade. Black absorbs across the whole spectrum, so the result keeps its hue but loses brightness and some saturation, which is how blue becomes black.
Frequently asked questions
What color do blue and black make?
Blue and Black make black, #11263d. 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 grey. Add black for a shade, which gives black. 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 blue than black?
Three parts blue to one part black gives teal. Reversing it to one part blue and three parts black gives black 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.