#51781D#51781D

#51781D is a mid, vivid yellow-green. Relative luminance 0.153; OKLCH L 52.5% C 0.126 H 130.2°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#51781D
RGB	rgb(81, 120, 29)
HSL	hsl(86, 61%, 29%)
HSV	hsv(86, 76%, 47%)
CMYK	cmyk(32.5%, 0%, 75.8%, 52.9%)
CIE-LAB	lab(46.00, -28.63, 42.92)
CIE-LCH	lch(46.00, 51.59, 123.71°)
OKLab	oklab(52.48% -0.0813 0.0961)
OKLCH	oklch(52.48% 0.126 130.2)
XYZ	xyz(10.3315, 15.2707, 3.5653)
Luminance	0.1527 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51781D #441D78

analogous

#78721D #51781D #24781D

triadic

#51781D #1D5178 #781D51

tetradic

#51781D #1D7872 #441D78 #781D24

square

#51781D #1D7872 #441D78 #781D24

split-complementary

#51781D #1D2478 #721D78

monochromatic

#111906 #304711 #51781D #72A929 #92D13F

Accessibility & contrast

On white

5.18

#51781D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#51781D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51781D

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51781D	#FFFFFF	#000000	##FFFFFF
##51781D	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E6F0C

Deuteranopia (green-blind)

#786C26

Tritanopia (blue-blind)

#537366

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #51781d;
/* rgb */ color: rgb(81, 120, 29);
/* oklch */ color: oklch(52.5% 0.126 130.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#51781d",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 29
  },
  "hsl": {
    "h": 85.714,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.52484,
    "c": 0.12589,
    "h": 130.2
  },
  "luminance": 0.15271
}

Semantic roles & 50–950 ramp

primary

#51781D

secondary

#7145AC

accent

#44E488

background

#F8F9F5

surface

#F0F2EA

border

#CBCCC6

text

#0B0E05

muted

#7C7E79

Preview Lab

Preview with #51781D

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

Preview Lab → · Contrast checker → · Palette generator →