Chartreuse
chartreuse · #7FFF00
HEX
#7FFF00
RGB
rgb(127, 255, 0)
CMYK
cmyk(50%, 0%, 100%, 0%)
HSL
hsl(90, 100%, 50%)
LAB
lab(89.9, -68.1, 85.8)
What is Chartreuse?
Chartreuse is the chartreuse reference in the CSS Named Colors. Its sRGB value is #7FFF00 (rgb 127, 255, 0). It sits in the green family. The 147 named colors defined by the W3C CSS Color Module Level 4 specification — usable directly in CSS as keywords like 'crimson' or 'rebeccapurple'. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Chartreuse as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Chartreuse
An 11-step tonal scale derived from Chartreuse (#7FFF00). Click any swatch to copy its HEX. Use these as a starting point for design tokens, hover states, and disabled states in a design system.
50
#F5FFEB
#F5FFEB
100
#EBFFD6
#EBFFD6
200
#D6FFAD
#D6FFAD
300
#BFFF80
#BFFF80
400
#9FFF40
#9FFF40
500
#7FFF00
#7FFF00
600
#6CD900
#6CD900
700
#53A600
#53A600
800
#397300
#397300
900
#204000
#204000
950
#0F1F00
#0F1F00
Lighter tints (mixed with white)
15%
#9CFF6C
30%
#B3FF95
45%
#C6FFB3
60%
#D8FFCB
75%
#E8FFE1
Darker shades (mixed with black)
15%
#76ED00
30%
#6CDA00
45%
#60C400
60%
#52AA00
75%
#418900
Color harmonies for Chartreuse
Classic color-theory harmonies derived from rotating the hue of Chartreuse. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#7FFF00
#7FFF00
#7F00FF
#7F00FF
Triadic
Three colors 120° apart
#7FFF00
#7FFF00
#007FFF
#007FFF
#FF0080
#FF0080
Analogous
Two neighbors ±30° on the wheel
#FFFF00
#FFFF00
#7FFF00
#7FFF00
#00FF00
#00FF00
Split-complementary
Base + two colors flanking its complement
#7FFF00
#7FFF00
#0000FF
#0000FF
#FF00FF
#FF00FF
Tetradic
Two complementary pairs
#7FFF00
#7FFF00
#00FF80
#00FF80
#7F00FF
#7F00FF
#FF0080
#FF0080
Square
Four colors evenly spaced 90° apart
#7FFF00
#7FFF00
#00FFFF
#00FFFF
#7F00FF
#7F00FF
#FF0000
#FF0000
Chartreuse in every color space
Full conversion of Chartreuse across the color spaces designers and developers actually use — including OKLCH (the perceptually-uniform space that powers Tailwind v4 and CSS Color Module Level 4) and HWB.
HEX
#7FFF00
RGB
rgb(127, 255, 0)
CMYK
cmyk(50%, 0%, 100%, 0%)
HSL
hsl(90, 100%, 50%)
HSV
hsv(90, 100%, 100%)
HWB
hwb(90 0% 0%)
CIE Lab
lab(89.9 -68.1 85.8)
OKLCH
oklch(89.0% 0.265 136.0)
XYZ (D65)
xyz(44.51, 76.03, 12.33)
Copy-ready code for Chartreuse
Drop-in snippets for CSS, Tailwind, Sass, iOS Swift, and Android XML. Click the copy button on any snippet to put it on your clipboard.
CSS
color: #7FFF00;
background-color: #7FFF00;CSS variable
:root {
--color-chartreuse: #7FFF00;
}Tailwind config
// tailwind.config.js
colors: {
'chartreuse': '#7FFF00',
}Sass
$color-chartreuse: #7FFF00;Swift UIColor
UIColor(red: 0.498, green: 1.000, blue: 0.000, alpha: 1.0)Android XML
<color name="chartreuse">#7FFF00</color>Closest match in every color system
The nearest Chartreuse equivalent in every other color system on this site, ranked by ΔE2000 perceptual distance. Useful when translating between design-system, web-standard, and industrial color references.
Closest in CSS Named Colors
Top 6 ΔE2000-closest entries within the same collection.
Closest Pantone matches
Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.
Closest RAL Classic matches
Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.
RAL 1016
#EDFF21
Sulfur yellow
RAL 1026
#FFFF00
Luminous yellow
RAL 1018
#F8F32B
Zinc yellow
RAL 6019
#BDECB6
Pastel green
RAL 6018
#57A639
Yellow green
RAL 1000
#BEBD7F
Green beige
FAQ about Chartreuse
What is the HEX code for Chartreuse?
Chartreuse (chartreuse) has the HEX code #7FFF00. In RGB it is rgb(127, 255, 0), and in CMYK it is cmyk(50%, 0%, 100%, 0%).
What is the OKLCH value of Chartreuse?
Chartreuse converts to oklch(0.890 0.265 136.0). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Chartreuse accessible for body text?
Used as a background, Chartreuse has a contrast ratio of 16.21:1 with black text and 1.30:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Chartreuse?
The closest Pantone reference to Chartreuse by ΔE2000 perceptual distance is Pantone 367 C (#A4D65E). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Chartreuse?
The closest RAL Classic reference to Chartreuse by ΔE2000 distance is RAL 1016 (Sulfur yellow, #EDFF21). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Chartreuse?
The complementary color (180° opposite on the HSL color wheel) of Chartreuse is #7F00FF. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
CSS Named Colors (CSS Color Module Level 4)
The 147 named colors defined by the W3C CSS Color Module Level 4 specification. Origin: VGA (16) + X11 (rest) + 'rebeccapurple'. Use as a reference for web color names that all browsers natively support. Names like 'crimson' or 'rebeccapurple' work as CSS values without any framework.
- Source type
- derived
- Confidence
- high
- License
- W3C permissive document license
- Last reviewed
- 2026-05-24
Workflow tags
CSS named colors are sRGB digital values defined for browsers. For print, convert to a process-appropriate color and proof against substrate.