What color does blue and black make?
Blue and Black make Navy (#12233F). Adding black is a shade, not a hue shift: it deepens blue into a near-black navy without pulling it toward another color.
Blue and Black sit far enough apart on the color wheel that the mix pulls toward whichever color carries more visual weight, often landing on a hue neither original color shares.
How the ratio changes the result
That's the traditional paint-mixing answer. The calculator below blends these exact colors live in OKLCH space, which lands a little differently, edit either hex to compare the two.
Blue and Black mix FAQ
What color does blue and black make?
Blue and Black make Navy (#12233F). Adding black is a shade, not a hue shift: it deepens blue into a near-black navy without pulling it toward another color.
Does the ratio of blue to black change the result?
Yes. Equal parts land on Navy (#12233F), but using more blue pulls the result toward #524eb0, and more black pulls it toward #3e2335. Try any ratio in the calculator above.
What's the exact hex code for blue and black mixed?
Blue (#2F6FED) and Black (#171717) mixed in equal parts is #12233F. Copy it directly from the calculator, or open it in the generator to build a full palette around it.