#51831C#51831C

#51831C is a mid, vivid yellow-green. Relative luminance 0.181; OKLCH L 55.4% C 0.141 H 132.5°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#51831C
RGB	rgb(81, 131, 28)
HSL	hsl(89, 65%, 31%)
HSV	hsv(89, 79%, 51%)
CMYK	cmyk(38.2%, 0%, 78.6%, 48.6%)
CIE-LAB	lab(49.58, -33.79, 46.75)
CIE-LCH	lch(49.58, 57.69, 125.86°)
OKLab	oklab(55.4% -0.0954 0.104)
OKLCH	oklch(55.4% 0.141 132.5)
XYZ	xyz(11.7191, 18.0653, 3.9679)
Luminance	0.1807 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51831C #4E1C83

analogous

#83811C #51831C #1D831C

triadic

#51831C #1C5183 #831C51

tetradic

#51831C #1C8381 #4E1C83 #831C1D

square

#51831C #1C8381 #4E1C83 #831C1D

split-complementary

#51831C #1C1D83 #811C83

monochromatic

#131E06 #325111 #51831C #70B527 #8FD743

Accessibility & contrast

On white

4.55

#51831C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#51831C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51831C

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51831C	#FFFFFF	#000000	##000000
##51831C	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)

#897803

Deuteranopia (green-blind)

#827427

Tritanopia (blue-blind)

#527D70

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #51831c;
/* rgb */ color: rgb(81, 131, 28);
/* oklch */ color: oklch(55.4% 0.141 132.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#51831c",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 28
  },
  "hsl": {
    "h": 89.126,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.55397,
    "c": 0.1411,
    "h": 132.5
  },
  "luminance": 0.18066
}

Semantic roles & 50–950 ramp

primary

#51831C

secondary

#7C45B6

accent

#40E891

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #51831C

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

Preview Lab → · Contrast checker → · Palette generator →