#51A11D#51A11D

#51A11D is a light, vivid yellow-green. Relative luminance 0.273; OKLCH L 63.4% C 0.178 H 136.5°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#51A11D
RGB	rgb(81, 161, 29)
HSL	hsl(96, 69%, 37%)
HSV	hsv(96, 82%, 63%)
CMYK	cmyk(49.7%, 0%, 82%, 36.9%)
CIE-LAB	lab(59.28, -46.33, 55.52)
CIE-LCH	lch(59.28, 72.31, 129.85°)
OKLab	oklab(63.36% -0.1291 0.1225)
OKLCH	oklch(63.36% 0.178 136.5)
XYZ	xyz(16.3595, 27.3266, 5.5747)
Luminance	0.2733 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A11D #6D1DA1

analogous

#93A11D #51A11D #1DA12B

triadic

#51A11D #1D51A1 #A11D51

tetradic

#51A11D #1D93A1 #6D1DA1 #A12B1D

square

#51A11D #1D93A1 #6D1DA1 #A12B1D

split-complementary

#51A11D #2B1DA1 #A11D93

monochromatic

#1D390A #376D14 #51A11D #6BD526 #8EE158

Accessibility & contrast

On white

3.25

#51A11D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#51A11D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A11D

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A11D	#FFFFFF	#000000	##000000
##51A11D	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79300

Deuteranopia (green-blind)

#9C8C2D

Tritanopia (blue-blind)

#4D9B89

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #51a11d;
/* rgb */ color: rgb(81, 161, 29);
/* oklch */ color: oklch(63.4% 0.178 136.5);

Tailwind

colors: {
  custom: {
    50: '#8abd66',
    500: '#51a11d',
    950: '#000000',
  },
}

SCSS

$custom: #51a11d;
$custom-light: #8abd66;
$custom-dark: #000000;

JSON

{
  "hex": "#51a11d",
  "rgb": {
    "r": 81,
    "g": 161,
    "b": 29
  },
  "hsl": {
    "h": 96.364,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.63356,
    "c": 0.17795,
    "h": 136.5
  },
  "luminance": 0.27328
}

Semantic roles & 50–950 ramp

primary

#51A11D

secondary

#9955C4

accent

#3CECA7

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1206

muted

#7D817A

Preview Lab

Preview with #51A11D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →