#51831D#51831D

#51831D is a mid, vivid yellow-green. Relative luminance 0.181; OKLCH L 55.4% C 0.141 H 132.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#51831D
RGB	rgb(81, 131, 29)
HSL	hsl(89, 64%, 31%)
HSV	hsv(89, 78%, 51%)
CMYK	cmyk(38.2%, 0%, 77.9%, 48.6%)
CIE-LAB	lab(49.58, -33.73, 46.41)
CIE-LCH	lch(49.58, 57.37, 126.01°)
OKLab	oklab(55.4% -0.0951 0.1034)
OKLCH	oklch(55.4% 0.141 132.6)
XYZ	xyz(11.7313, 18.0701, 4.0319)
Luminance	0.1807 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51831D #4F1D83

analogous

#83821D #51831D #1E831D

triadic

#51831D #1D5183 #831D51

tetradic

#51831D #1D8382 #4F1D83 #831D1E

square

#51831D #1D8382 #4F1D83 #831D1E

split-complementary

#51831D #1D1E83 #821D83

monochromatic

#131F07 #325112 #51831D #70B528 #8FD645

Accessibility & contrast

On white

4.55

#51831D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#51831D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51831D

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51831D	#FFFFFF	#000000	##000000
##51831D	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897806

Deuteranopia (green-blind)

#827427

Tritanopia (blue-blind)

#527D70

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #51831d;
/* rgb */ color: rgb(81, 131, 29);
/* oklch */ color: oklch(55.4% 0.141 132.6);

Tailwind

colors: {
  custom: {
    50: '#86a761',
    500: '#51831d',
    950: '#000000',
  },
}

SCSS

$custom: #51831d;
$custom-light: #86a761;
$custom-dark: #000000;

JSON

{
  "hex": "#51831d",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 29
  },
  "hsl": {
    "h": 89.412,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.55403,
    "c": 0.14053,
    "h": 132.6
  },
  "luminance": 0.18071
}

Semantic roles & 50–950 ramp

primary

#51831D

secondary

#7D46B6

accent

#41E792

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #51831D

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

Preview Lab → · Contrast checker → · Palette generator →