#51781E#51781E

#51781E is a mid, vivid yellow-green. Relative luminance 0.153; OKLCH L 52.5% C 0.125 H 130.3°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#51781E
RGB	rgb(81, 120, 30)
HSL	hsl(86, 60%, 29%)
HSV	hsv(86, 75%, 47%)
CMYK	cmyk(32.5%, 0%, 75%, 52.9%)
CIE-LAB	lab(46.01, -28.56, 42.53)
CIE-LCH	lch(46.01, 51.24, 123.88°)
OKLab	oklab(52.49% -0.081 0.0955)
OKLCH	oklch(52.49% 0.125 130.3)
XYZ	xyz(10.3441, 15.2757, 3.6315)
Luminance	0.1528 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51781E #451E78

analogous

#78721E #51781E #24781E

triadic

#51781E #1E5178 #781E51

tetradic

#51781E #1E7872 #451E78 #781E24

square

#51781E #1E7872 #451E78 #781E24

split-complementary

#51781E #1E2478 #721E78

monochromatic

#111806 #304712 #51781E #72A92A #92CF41

Accessibility & contrast

On white

5.18

#51781E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#51781E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51781E

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51781E	#FFFFFF	#000000	##FFFFFF
##51781E	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E6F0E

Deuteranopia (green-blind)

#786C26

Tritanopia (blue-blind)

#537366

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #51781e;
/* rgb */ color: rgb(81, 120, 30);
/* oklch */ color: oklch(52.5% 0.125 130.3);

Tailwind

colors: {
  custom: {
    50: '#859f60',
    500: '#51781e',
    950: '#000000',
  },
}

SCSS

$custom: #51781e;
$custom-light: #859f60;
$custom-dark: #000000;

JSON

{
  "hex": "#51781e",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 30
  },
  "hsl": {
    "h": 86,
    "s": 60,
    "l": 29.412
  },
  "oklch": {
    "l": 0.52492,
    "c": 0.12523,
    "h": 130.3
  },
  "luminance": 0.15276
}

Semantic roles & 50–950 ramp

primary

#51781E

secondary

#7246AC

accent

#45E389

background

#F8F9F5

surface

#F0F2EA

border

#CBCCC6

text

#0B0E05

muted

#7C7E79

Preview Lab

Preview with #51781E

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

Preview Lab → · Contrast checker → · Palette generator →