#51790B Color
#51790B is rgb(81, 121, 11) in RGB, hsl(82, 83%, 26%) in HSL, and about cmyk(33%, 0%, 91%, 53%) in CMYK. It has no registered color name of its own — the closest is Olive Drab (#6B8E23), clearly related but distinguishable side by side at ΔE 8.74. White text is the more readable choice on this background.
#51790Brgb(81, 121, 11)hsl(82, 83%, 26%)hsv(82, 91%, 47%)cmyk(33%, 0%, 91%, 53%)oklch(52.7% 0.136 129.3)lab(46.39% -26.43 47.73)lch(46.39% 54.56 118.97)What #51790B Is Called
Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #51790B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.
Browse the full index of named colors A-Z or every green in the library.
#51790B Channel Values
How #51790B breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.
| Model | Channels | Notes |
|---|---|---|
| RGB | R 81 · G 121 · B 11 | 8-bit channels as sent to the display |
| HSL | H 82° · S 83% · L 26% | Easiest model for building lighter and darker variants |
| HSV | H 82° · S 91% · V 47% | Matches the picker in most design tools |
| CMYK | C 33% · M 0% · Y 91% · K 53% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 5.13:1 vs white · 4.09:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #51790B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.
Need a specific ratio against another background? Open #51790B in the contrast checker.
Colors That Go With #51790B
Pairings derived from color-wheel relationships. The complementary color sits opposite #51790B; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.
Tints & Shades of #51790B
Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.
Want a full 50-950 ramp with semantic roles? Generate design tokens from #51790B.
How #51790B Looks with Color Vision Deficiency
Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.
#51790B#73730C#67760C#6E6E13#637210#5C7272#58755A#6E6E6EUsing #51790B in Code
Copy-ready declarations for the places this color usually ends up.
--color-51790b: #51790B;background-color: #51790B;colors: { 'color-51790b': '#51790B' }Color(red: 0.318, green: 0.475, blue: 0.043)<color name="color_51790b">#51790B</color>fill="#51790B"More Green Colors
#51790B sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#51790B Frequently Asked Questions
What color is #51790B?
#51790B is a dark green — rgb(81, 121, 11) in RGB and hsl(82, 83%, 26%) in HSL. It carries no registered color name of its own; the closest named color is Olive Drab (#6B8E23), which is clearly related but distinguishable side by side at a CIE76 distance of 8.74.
What is the RGB value of #51790B?
#51790B is rgb(81, 121, 11) — red 81, green 121, and blue 11 on the 0-255 scale.
What is the CMYK value of #51790B?
#51790B converts to approximately cmyk(33%, 0%, 91%, 53%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #51790B be black or white?
White text is the more readable choice. #51790B scores 5.13:1 against white and 4.09:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #51790B as a CSS color keyword?
No. #51790B is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is olivedrab (#6B8E23) at a CIE76 distance of 8.74, which is clearly related but distinguishable side by side.
Open #51790B in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.