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Green Yellow

Hex #ADFF2F, rgb(173 255 47). A green CSS named color.

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Green Yellow color codes

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RGB
HSL
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HWB
CMYK
OKLCH
OKLab
Lab
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CSS keyword

About Green Yellow

Green Yellow is a very light vivid green with the hex code #ADFF2F. In RGB it is made of 173 red, 255 green and 47 blue; in HSL its hue is 84°, with 100% saturation and 59% lightness. Its perceptual lightness (OKLCH L) is 91.3%.

It is a CSS named color, so you can write "greenyellow" anywhere CSS accepts a color. Against white it has a contrast ratio of 1.23:1 and against black 17.12:1, so black text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

Green Yellow mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Green Yellow 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Green Yellow

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Green Yellow with white and black. The readable text color on Green Yellow is black.

Green Yellow textSmall text on white

On white1.23:1

  • AA fail
  • AA Large fail
  • AAA fail
  • UI 3:1 fail

APCA Lc 11

Green Yellow textSmall text on black

On black17.12:1

  • AA pass
  • AA Large pass
  • AAA pass
  • UI 3:1 pass

APCA Lc -93

Black text on Green Yellow (#000000)

Test any pair in the contrast checker.

Color blindness preview

How Green Yellow appears with each type of color vision deficiency (simulated with the Machado model).

  • Protanopia#FFEC00
  • Deuteranopia#FFE648
  • Tritanopia#B2F4DA
  • Protanomaly#F6F00D
  • Deuteranomaly#F1EC42
  • Tritanomaly#ACFA9D
  • Achromatopsia#E8E8E8

Colors similar to Green Yellow

The closest named colors by perceptual difference (OKLab).

Use Green Yellow in CSS and Tailwind

CSS
.green-yellow {
  color: greenyellow; /* #ADFF2F */
  background-color: rgb(173 255 47);
  border-color: oklch(91.3% 0.233 130);
}
Tailwind CSS
/* Tailwind CSS v4: bg-green-yellow-500, text-green-yellow-700... */
@theme {
  --color-green-yellow-50: #F3FFE8;
  --color-green-yellow-100: #ADFF2F;
  --color-green-yellow-200: #9CEC00;
  --color-green-yellow-300: #89CF00;
  --color-green-yellow-400: #6FA900;
  --color-green-yellow-500: #5E9100;
  --color-green-yellow-600: #507D00;
  --color-green-yellow-700: #406500;
  --color-green-yellow-800: #335100;
  --color-green-yellow-900: #284200;
  --color-green-yellow-950: #0D1B00;
}

<!-- or the exact color, no config -->
<div class="bg-[#ADFF2F] text-[#000000]">…</div>