Green color · CSS named color
Chartreuse Color Code: #7FFF00
Chartreuse (#7FFF00) is a medium, vivid yellow-green shade: RGB 127, 255, 0, HSL 90°, 100%, 50%. Black text reads best on it (16.20:1 contrast).
Chartreuse color values
#7FFF00
rgb(127, 255, 0)
hsl(90, 100%, 50%)
90, 100%, 100%
hwb(90 0% 0%)
50%, 0%, 100%, 0%
8388352
chartreuse
CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.
What is Chartreuse?
Chartreuse is one of the named colors defined by the CSS Color specifications (keyword “chartreuse”), so every modern browser understands it without a hex code.
Its hue angle of 90° places it in the yellow-green part of the color wheel, with 100% saturation (vivid) and 50% lightness (medium). It sits between warm and cool.
Compared with the other green colors in the Aqeeb Studio library, it is lighter than 54% of them and more saturated than 89% of them.
Its relative luminance is 0.760, which makes it a very light color. That is above the 0.179 crossover point at which black and white text have equal contrast, so black text has the advantage.
Chartreuse counts as a light color: its HSL lightness is 50% and its relative luminance is 0.760. Black text reads best on it (16.20:1 contrast).
Text contrast on Chartreuse
| Text | Preview | Ratio | AA normal | AA large | AAA normal | AAA large |
|---|---|---|---|---|---|---|
| White text | Sample text | 1.29:1 Poor | Fail | Fail | Fail | Fail |
| Black text | Sample text | 16.20:1 Excellent | Pass | Pass | Pass | Pass |
Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.
Colors that go with Chartreuse
Complementary color
Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.
Analogous colors
Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.
Triadic colors
A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.
Split-complementary colors
Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.
Tetradic colors
A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.
Monochromatic variants
Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.
A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.
Tints and shades of Chartreuse
Lighter tints (mixed with white)
Darker shades (mixed with black)
Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.
Similar colors
Where to use Chartreuse
- Card, highlight and section backgrounds with dark text (16.20:1 contrast with black)
- Accents that need to stand out: call-to-action buttons, charts and illustrations
- Charts, maps and nature illustrations
- Calm backgrounds and section fills
- Success and confirmation states (with a label or icon)
- Eco, health and finance-style branding
Chartreuse appears in these curated palettes: Lime Pop (Green Color Palettes).
Use Chartreuse in CSS
:root {
--color-chartreuse: #7FFF00;
}
.element {
color: var(--color-chartreuse);
background-color: #7FFF00;
border: 2px solid #7FFF00;
}Questions about Chartreuse
What is the HEX code for Chartreuse?
Chartreuse is #7FFF00.
What is the RGB value of Chartreuse?
The RGB value of Chartreuse is 127, 255, 0: 127 red, 255 green and 0 blue on a 0–255 scale, written rgb(127, 255, 0) in CSS.
What is the HSL value of Chartreuse?
The HSL value of Chartreuse is 90°, 100%, 50% (hue, saturation, lightness), written hsl(90, 100%, 50%) in CSS.
What is the CMYK value of Chartreuse?
A standard conversion gives about C 50%, M 0%, Y 100%, K 0%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.
Is Chartreuse a light or dark color?
Chartreuse counts as a light color: its HSL lightness is 50% and its relative luminance is 0.760. Black text reads best on it (16.20:1 contrast).
How does Chartreuse look with white text?
White text on Chartreuse has a contrast ratio of 1.29:1, rated Poor. It falls below the WCAG minimum for text.
How does Chartreuse look with black text?
Black text on Chartreuse has a contrast ratio of 16.20:1, rated Excellent. It meets WCAG AA for normal text.
What colors go well with Chartreuse?
Vivid Purple is its complementary color, and Yellow sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.
Where can Chartreuse be used?
It suits card, highlight and section backgrounds with dark text (16.20:1 contrast with black); accents that need to stand out: call-to-action buttons, charts and illustrations; charts, maps and nature illustrations.
How do I use Chartreuse in CSS?
Use color: #7FFF00; for text, background-color: #7FFF00; for fills, or define a custom property such as --color-chartreuse: #7FFF00; and reuse it with var(--color-chartreuse).
About this color page
CSS named color (W3C CSS Color Module). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.