Black Onyx Color – #2a272c: Codes and Complete Breakdown
By
Published on
Black Onyx is a warm, slightly purple-black named for the polished onyx gemstone used in signet rings and Art Deco jewelry. It has a faint depth that pure black lacks. The Black Onyx color code suits luxe, high-contrast interiors.

Black Onyx Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#2a272c
Black Onyx Color Codes and Information
Here’s a complete breakdown of the color Black Onyx, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #2a272c |
| RGB | rgb(42,39,44) |
| HSL | hsl(276,6%,16.3%) |
| CMYK | 5, 11, 0, 83 |
| HSV | 276, 11, 17 |
| RGB % | 16, 15, 17 |
| XYZ | 2.1, 2.1, 2.7 |
| LAB | 16, 2.4, -3.1 |
| Color Category | Dark |
| Color Family | Black |
| Saturation | 11% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 14.74 (passes WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 1.43 (fails WCAG AA) |
Similar Colors to Black Onyx Color
#a66e7a

Black Elder
#2e2f31

Black Cat
#292938

Mangu Black
#302833

Black Safflower
#232f36
Freinacht Black
#77606f

Black Plum
#312231

Anubis Black
#322b26

Industrial Black









