GREEN

Chartreuse

#7FFF00

Conversions

HEX#7FFF00

RGBrgb(127, 255, 0)

HSLhsl(90, 100%, 50%)

HSVhsv(90, 100%, 100%)

CMYKcmyk(50%, 0%, 100%, 0%)

Copy CSS

color: #7fff00;
/* rgb  */ color: rgb(127, 255, 0);
/* hsl  */ color: hsl(90, 100%, 50%);

Contrast

On whiteFail · 1.30 : 1

On ink blackPass · 14.77 : 1

Shades

Tints

Pairings

Triadic
#007FFF

About Chartreuse

Chartreuse is the hex color #7FFF00, which translates to rgb(127, 255, 0) in RGB and hsl(90, 100%, 50%) in HSL. On the color wheel it sits at 90 degrees, with a saturation of 100 percent and a lightness of 50 percent. Its OKLCH chroma of 0.265 is high, so Chartreuse is one of the more vivid green tones here and is easy to overuse at large sizes.

How Chartreuse compares

Chartreuse is exactly the CSS keyword chartreuse, so you can write the keyword instead of the hex and get an identical result. In the Tailwind CSS 4.3.1 palette the nearest token is lime-400 (#9AE600), at a distance of 19.6. Inside this library the closest neighbour is Green Yellow at 16.2. Sorted by lightness, Chartreuse is number 19 of the 30 green colors here.

Text on Chartreuse

2 of the five common text colors below clear WCAG AA for normal text on Chartreuse, led by Ink black at 14.77:1. The ratios are computed with the WCAG relative luminance formula, the same one the contrast checker uses, which opens with Chartreuse already loaded as the background.

Contrast of common text colors on Chartreuse. AA normal text needs 4.5:1, AA large text and non-text elements need 3:1, AAA normal text needs 7:1.
Text color	Ratio	AA normal	AA large	AAA normal
White #FFFFFF	1.30:1	Fail	Fail	Fail
Ink black #0F0F12	14.77:1	Pass	Pass	Pass
Mid grey #6B7280	3.73:1	Fail	Pass	Fail
Dark grey #374151	7.95:1	Pass	Pass	Pass
Light grey #E5E7EB	1.05:1	Fail	Fail	Fail

Building a palette around Chartreuse

The pairings above give you three classic starting points. The complementary color sits opposite on the wheel and works well as an accent that draws the eye. The analogous colors sit right beside Chartreuse for calmer, harmonious combinations. The triadic pair spaces three hues evenly for a balanced, energetic palette. Open any swatch to explore it as its own color.

Full values for Chartreuse

Format	Value
HEX	#7FFF00
RGB	rgb(127, 255, 0)
HSL	hsl(90, 100%, 50%)
HSV	hsv(90, 100%, 100%)
CMYK	cmyk(50%, 0%, 100%, 0%)
OKLCH	oklch(89.03% 0.2648 136.01)
CIELAB	lab(89.87 -68.07 85.78)

Use Chartreuse in a tool

Nearby colors

Last updated 5 August 2026 by FusionStudios. Every value on this page is computed by the same functions the tools use. How this is calculated.