CSS named color
GreenYellow #ADFF2F
GreenYellow (CSS keyword greenyellow) has the hex code #ADFF2F and the RGB value rgb(173, 255, 47): a very light, vivid yellow-green.
A very bright yellow-green, more yellow than chartreuse. Not to be confused with yellowgreen, which is darker and less saturated.
Color codes for GreenYellow
| CSS keyword | greenyellow |
|---|---|
| HEX | #ADFF2F |
| RGB | rgb(173, 255, 47) |
| HSL | hsl(84, 100%, 59%) |
| HWB | hwb(84 18% 0%) |
| OKLCH | oklch(91.3% 0.233 130) |
| CMYK (naive, no ICC profile) | cmyk(32%, 0%, 82%, 0%) |
| Decimal | 11,403,055 |
| Hue family | Greens |
Contrast and accessibility
On greenyellow, black text has a contrast ratio of 17.12:1 and passes AAA at any text size; white text reaches 1.22:1.
WCAG 2.2 contrast ratios (success criteria 1.4.3 and 1.4.6: AA needs 4.5:1 for normal text and 3:1 for large text, AAA needs 7:1 and 4.5:1). APCA Lc is the lightness contrast from the APCA-W3 0.0.98G model proposed for WCAG 3; a higher absolute value is more readable, and Lc 75 is its suggested minimum for body text.
| Pair | Ratio | AA | AA large | AAA | AAA large | APCA Lc |
|---|---|---|---|---|---|---|
| Black text on greenyellow | 17.12:1 | Pass | Pass | Pass | Pass | 92.7 |
| White text on greenyellow | 1.22:1 | Fail | Fail | Fail | Fail | −12.7 |
| Greenyellow text on white | 1.22:1 | Fail | Fail | Fail | Fail | 10.9 |
| Greenyellow text on black | 17.12:1 | Pass | Pass | Pass | Pass | −93.2 |
Tints and shades
Each step mixes greenyellow with white (tints) or black (shades) in gamma-encoded sRGB, the same result as color-mix(in srgb, greenyellow, white 25%) in CSS.
Tints (mixed with white)
- 5%
#b1ff39 - 15%
#b9ff4e - 25%
#c2ff63 - 35%
#caff78 - 45%
#d2ff8d - 55%
#daffa1 - 65%
#e2ffb6 - 75%
#ebffcb - 85%
#f3ffe0 - 95%
#fbfff5
Shades (mixed with black)
- 5%
#a4f22d - 15%
#93d928 - 25%
#82bf23 - 35%
#70a61f - 45%
#5f8c1a - 55%
#4e7315 - 65%
#3d5910 - 75%
#2b400c - 85%
#1a2607 - 95%
#090d02
Color harmonies
Rotating the hue in OKLCH while keeping lightness and chroma, greenyellow's complementary color is #F4D3FF (close to lavender), its analogous colors are #FFE300 and #56FFB8, and its triadic partners are #C2E6FF and #FFD0D8. For text on top, black gives the higher contrast.
| Harmony | Rotation | Color |
|---|---|---|
| Complementary | +180° | #f4d3ff |
| Analogous | −30°, +30° | #ffe300#56ffb8 |
| Triadic | +120°, +240° | #c2e6ff#ffd0d8 |
| Split-complementary | +150°, +210° | #d9deff#ffcbf5 |
Computed in OKLCH: the hue is rotated by 180° (complementary), ±30° (analogous), ±120° (triadic) and 180° ±30° (split-complementary) while lightness and chroma stay fixed. Results that fall outside sRGB are brought back with the CSS Color 4 gamut mapping algorithm. Because this uses OKLCH, the values differ from tools that rotate hue in HSL, but every color keeps the same perceived lightness.
Warm or cool?
GreenYellow sits on the boundary: its hue of 84° on the HSL wheel is a yellow-green, which reads warm next to blues and cool next to reds and oranges.
Nearest named and Tailwind colors
Distance is ΔE OK, the Euclidean distance in OKLab multiplied by 100. Values under about 2 are hard to tell apart side by side.
Code snippets
.element {
color: greenyellow;
background-color: #adff2f;
border-color: rgb(173 255 47);
outline-color: oklch(91.3% 0.233 130);
}<div class="bg-[#adff2f] text-black">...</div>
/* or register it once in your CSS (Tailwind v4) */
@theme {
--color-greenyellow: #adff2f;
}
/* then use bg-greenyellow, text-greenyellow, border-greenyellow */import SwiftUI
extension Color {
static let greenyellow = Color(red: 0.678, green: 1.000, blue: 0.184)
}import androidx.compose.ui.graphics.Color
val Greenyellow = Color(0xFFADFF2F)import 'package:flutter/material.dart';
const greenyellow = Color(0xFFADFF2F);<!-- res/values/colors.xml -->
<color name="greenyellow">#ADFF2F</color>Frequently asked questions
- What is the hex code for greenyellow?
- The hex code for greenyellow is #ADFF2F. The same color is rgb(173, 255, 47), hsl(84, 100%, 59%) and oklch(91.3% 0.233 130), and in CSS you can also write the keyword greenyellow directly.
- Is greenyellow a warm or cool color?
- GreenYellow sits on the boundary: its hue of 84° on the HSL wheel is a yellow-green, which reads warm next to blues and cool next to reds and oranges.
- What colors go with greenyellow?
- Rotating the hue in OKLCH while keeping lightness and chroma, greenyellow's complementary color is #F4D3FF (close to lavender), its analogous colors are #FFE300 and #56FFB8, and its triadic partners are #C2E6FF and #FFD0D8. For text on top, black gives the higher contrast.
- Can you use white text on greenyellow?
- White text on greenyellow has a contrast ratio of 1.22:1, which fails AA even for large text under WCAG 2.2. Black text reaches 17.12:1 and passes both AA and AAA. In APCA terms that is Lc −12.7 for white and Lc 92.7 for black.
- What is the RGB value of greenyellow?
- GreenYellow is rgb(173, 255, 47): red 173, green 255 and blue 47 on the 0 to 255 scale, or 67.8%, 100.0% and 18.4%. As a decimal integer it is 11403055.
Last reviewed by Arielton Oberek.