#51831A#51831A

#51831A is a mid, vivid yellow-green. Relative luminance 0.181; OKLCH L 55.4% C 0.142 H 132.4°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#51831A
RGB	rgb(81, 131, 26)
HSL	hsl(89, 67%, 31%)
HSV	hsv(89, 80%, 51%)
CMYK	cmyk(38.2%, 0%, 80.2%, 48.6%)
CIE-LAB	lab(49.56, -33.91, 47.42)
CIE-LCH	lch(49.56, 58.30, 125.57°)
OKLab	oklab(55.38% -0.0958 0.1051)
OKLCH	oklch(55.38% 0.142 132.4)
XYZ	xyz(11.6959, 18.0560, 3.8460)
Luminance	0.1806 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51831A #4C1A83

analogous

#83801A #51831A #1D831A

triadic

#51831A #1A5183 #831A51

tetradic

#51831A #1A8380 #4C1A83 #831A1D

square

#51831A #1A8380 #4C1A83 #831A1D

split-complementary

#51831A #1A1D83 #801A83

monochromatic

#121D06 #315010 #51831A #71B624 #8FD93F

Accessibility & contrast

On white

4.55

#51831A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#51831A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51831A

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

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

#897800

Deuteranopia (green-blind)

#827425

Tritanopia (blue-blind)

#527D6F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #51831a;
/* rgb */ color: rgb(81, 131, 26);
/* oklch */ color: oklch(55.4% 0.142 132.4);

Tailwind

colors: {
  custom: {
    50: '#87a760',
    500: '#51831a',
    950: '#000000',
  },
}

SCSS

$custom: #51831a;
$custom-light: #87a760;
$custom-dark: #000000;

JSON

{
  "hex": "#51831a",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 26
  },
  "hsl": {
    "h": 88.571,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.55384,
    "c": 0.1422,
    "h": 132.4
  },
  "luminance": 0.18057
}

Semantic roles & 50–950 ramp

primary

#51831A

secondary

#7A42B7

accent

#3EEA90

background

#F8FAF5

surface

#F0F4EA

border

#CBCEC6

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #51831A

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

Preview Lab → · Contrast checker → · Palette generator →