Chartreuse (#7FFF00)
The hex code for Chartreuse is #7FFF00. It is rgb(127, 255, 0) in RGB, hsl(90, 100%, 50%) in HSL, and about cmyk(50%, 0%, 100%, 0%) in CMYK — a mid-tone green. Black text is the more readable choice on this background.
#7FFF00rgb(127, 255, 0)hsl(90, 100%, 50%)hsv(90, 100%, 100%)cmyk(50%, 0%, 100%, 0%)oklch(89% 0.265 136)lab(90.05% -61.49 83.86)lch(90.05% 103.98 126.25)Colors Closest to Chartreuse
Chartreuse is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.
Browse the full index of named colors A-Z or every green in the library.
#7FFF00 Channel Values
How Chartreuse 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 127 · G 255 · B 0 | 8-bit channels as sent to the display |
| HSL | H 90° · S 100% · L 50% | Easiest model for building lighter and darker variants |
| HSV | H 90° · S 100% · V 100% | Matches the picker in most design tools |
| CMYK | C 50% · M 0% · Y 100% · K 0% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 1.3:1 vs white · 16.21:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a Chartreuse 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 #7FFF00 in the contrast checker.
Colors That Go With Chartreuse
Pairings derived from color-wheel relationships. The complementary color sits opposite Chartreuse; 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 Chartreuse
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 #7FFF00.
How Chartreuse 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.
#7FFF00#EFEF0C#CCF607#DFDF29#C0ED1E#9EF0F0#92F6C0#E2E2E2Using #7FFF00 in Code
Copy-ready declarations for the places this color usually ends up.
--chartreuse: #7FFF00;background-color: #7FFF00;colors: { 'chartreuse': '#7FFF00' }Color(red: 0.498, green: 1.000, blue: 0.000)<color name="chartreuse">#7FFF00</color>fill="#7FFF00"More Green Colors
Chartreuse sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#7FFF00 Frequently Asked Questions
What is the hex code for Chartreuse?
The hex code for Chartreuse is #7FFF00. That is rgb(127, 255, 0) in RGB, hsl(90, 100%, 50%) in HSL, and approximately cmyk(50%, 0%, 100%, 0%) in CMYK.
What is the RGB value of #7FFF00?
#7FFF00 is rgb(127, 255, 0) — red 127, green 255, and blue 0 on the 0-255 scale.
What is the CMYK value of #7FFF00?
#7FFF00 converts to approximately cmyk(50%, 0%, 100%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #7FFF00 be black or white?
Black text is the more readable choice. #7FFF00 scores 1.3:1 against white and 16.21:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Is Chartreuse a CSS named color?
Yes. Chartreuse is one of the CSS named colors, so you can write color: chartreuse instead of the hex code.
Open Chartreuse in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.