#005B00 Color
#005B00 is rgb(0, 91, 0) in RGB, hsl(120, 100%, 18%) in HSL, and about cmyk(100%, 0%, 100%, 64%) in CMYK. It has no registered color name of its own — the closest is Royal Green (#136207), very hard to tell apart at ΔE 3.01. White text is the more readable choice on this background.
#005B00rgb(0, 91, 0)hsl(120, 100%, 18%)hsv(120, 100%, 36%)cmyk(100%, 0%, 100%, 64%)oklch(40.8% 0.139 142.5)lab(32.92% -37.35 38.16)lch(32.92% 53.40 134.38)What #005B00 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 #005B00, 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.
#005B00 Channel Values
How #005B00 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 0 · G 91 · B 0 | 8-bit channels as sent to the display |
| HSL | H 120° · S 100% · L 18% | Easiest model for building lighter and darker variants |
| HSV | H 120° · S 100% · V 36% | Matches the picker in most design tools |
| CMYK | C 100% · M 0% · Y 100% · K 64% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 8.41:1 vs white · 2.5:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #005B00 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 #005B00 in the contrast checker.
Colors That Go With #005B00
Pairings derived from color-wheel relationships. The complementary color sits opposite #005B00; 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 #005B00
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 #005B00.
How #005B00 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.
#005B00#535302#415601#4B4B0A#3A5206#1E5555#165842#4D4D4DUsing #005B00 in Code
Copy-ready declarations for the places this color usually ends up.
--color-005b00: #005B00;background-color: #005B00;colors: { 'color-005b00': '#005B00' }Color(red: 0.000, green: 0.357, blue: 0.000)<color name="color_005b00">#005B00</color>fill="#005B00"More Green Colors
#005B00 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#005B00 Frequently Asked Questions
What color is #005B00?
#005B00 is a darkest green — rgb(0, 91, 0) in RGB and hsl(120, 100%, 18%) in HSL. It carries no registered color name of its own; the closest named color is Royal Green (#136207), which is very hard to tell apart at a CIE76 distance of 3.01.
What is the RGB value of #005B00?
#005B00 is rgb(0, 91, 0) — red 0, green 91, and blue 0 on the 0-255 scale.
What is the CMYK value of #005B00?
#005B00 converts to approximately cmyk(100%, 0%, 100%, 64%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #005B00 be black or white?
White text is the more readable choice. #005B00 scores 8.41:1 against white and 2.5:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #005B00 as a CSS color keyword?
No. #005B00 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 darkgreen (#006400) at a CIE76 distance of 4.92, which is very hard to tell apart.
Open #005B00 in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.