#155B4E Color
#155B4E is rgb(21, 91, 78) in RGB, hsl(169, 63%, 22%) in HSL, and about cmyk(77%, 0%, 14%, 64%) in CMYK. It has no registered color name of its own — the closest is Peacock (#005F5F), clearly related but distinguishable side by side at ΔE 8.45. White text is the more readable choice on this background.
#155B4Ergb(21, 91, 78)hsl(169, 63%, 22%)hsv(169, 77%, 36%)cmyk(77%, 0%, 14%, 64%)oklch(42.5% 0.071 177.3)lab(34.25% -24.75 1.05)lch(34.25% 24.77 177.58)What #155B4E 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 #155B4E, 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.
#155B4E Channel Values
How #155B4E 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 21 · G 91 · B 78 | 8-bit channels as sent to the display |
| HSL | H 169° · S 63% · L 22% | Easiest model for building lighter and darker variants |
| HSV | H 169° · S 77% · V 36% | Matches the picker in most design tools |
| CMYK | C 77% · M 0% · Y 14% · K 64% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 7.96:1 vs white · 2.64:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #155B4E 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 #155B4E in the contrast checker.
Colors That Go With #155B4E
Pairings derived from color-wheel relationships. The complementary color sits opposite #155B4E; 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 #155B4E
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 #155B4E.
How #155B4E 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.
#155B4E#54544E#43574E#4C4C4F#3D524F#1B5959#195A55#515151Using #155B4E in Code
Copy-ready declarations for the places this color usually ends up.
--color-155b4e: #155B4E;background-color: #155B4E;colors: { 'color-155b4e': '#155B4E' }Color(red: 0.082, green: 0.357, blue: 0.306)<color name="color_155b4e">#155B4E</color>fill="#155B4E"More Green Colors
#155B4E sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#155B4E Frequently Asked Questions
What color is #155B4E?
#155B4E is a dark green — rgb(21, 91, 78) in RGB and hsl(169, 63%, 22%) in HSL. It carries no registered color name of its own; the closest named color is Peacock (#005F5F), which is clearly related but distinguishable side by side at a CIE76 distance of 8.45.
What is the RGB value of #155B4E?
#155B4E is rgb(21, 91, 78) — red 21, green 91, and blue 78 on the 0-255 scale.
What is the CMYK value of #155B4E?
#155B4E converts to approximately cmyk(77%, 0%, 14%, 64%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #155B4E be black or white?
White text is the more readable choice. #155B4E scores 7.96:1 against white and 2.64:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #155B4E as a CSS color keyword?
No. #155B4E 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 darkslategray (#2F4F4F) at a CIE76 distance of 13.8, which is visibly different.
Open #155B4E in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.