#15CB5B Color
#15CB5B is rgb(21, 203, 91) in RGB, hsl(143, 81%, 44%) in HSL, and about cmyk(90%, 0%, 55%, 20%) in CMYK. It has no registered color name of its own — the closest is Dark Pastel Green (#03C03C), clearly related but distinguishable side by side at ΔE 9.73. Black text is the more readable choice on this background.
#15CB5Brgb(21, 203, 91)hsl(143, 81%, 44%)hsv(143, 90%, 80%)cmyk(90%, 0%, 55%, 20%)oklch(73.7% 0.204 149)lab(71.97% -61.10 42.88)lch(71.97% 74.65 144.94)What #15CB5B 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 #15CB5B, 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.
#15CB5B Channel Values
How #15CB5B 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 203 · B 91 | 8-bit channels as sent to the display |
| HSL | H 143° · S 81% · L 44% | Easiest model for building lighter and darker variants |
| HSV | H 143° · S 90% · V 80% | Matches the picker in most design tools |
| CMYK | C 90% · M 0% · Y 55% · K 20% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 2.16:1 vs white · 9.73:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #15CB5B 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 #15CB5B in the contrast checker.
Colors That Go With #15CB5B
Pairings derived from color-wheel relationships. The complementary color sits opposite #15CB5B; 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 #15CB5B
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 #15CB5B.
How #15CB5B 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.
#15CB5B#BBBB5C#95C25C#AAAA62#88B85F#4BC1C1#3CC5A2#B0B0B0Using #15CB5B in Code
Copy-ready declarations for the places this color usually ends up.
--color-15cb5b: #15CB5B;background-color: #15CB5B;colors: { 'color-15cb5b': '#15CB5B' }Color(red: 0.082, green: 0.796, blue: 0.357)<color name="color_15cb5b">#15CB5B</color>fill="#15CB5B"More Green Colors
#15CB5B sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#15CB5B Frequently Asked Questions
What color is #15CB5B?
#15CB5B is a mid-tone green — rgb(21, 203, 91) in RGB and hsl(143, 81%, 44%) in HSL. It carries no registered color name of its own; the closest named color is Dark Pastel Green (#03C03C), which is clearly related but distinguishable side by side at a CIE76 distance of 9.73.
What is the RGB value of #15CB5B?
#15CB5B is rgb(21, 203, 91) — red 21, green 203, and blue 91 on the 0-255 scale.
What is the CMYK value of #15CB5B?
#15CB5B converts to approximately cmyk(90%, 0%, 55%, 20%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #15CB5B be black or white?
Black text is the more readable choice. #15CB5B scores 2.16:1 against white and 9.73:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #15CB5B as a CSS color keyword?
No. #15CB5B 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 limegreen (#32CD32) at a CIE76 distance of 17.21, which is visibly different.
Open #15CB5B in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.