#51981F#51981F

#51981F is a mid, vivid yellow-green. Relative luminance 0.243; OKLCH L 61.0% C 0.166 H 135.7°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#51981F
RGB	rgb(81, 152, 31)
HSL	hsl(95, 66%, 36%)
HSV	hsv(95, 80%, 60%)
CMYK	cmyk(46.7%, 0%, 79.6%, 40.4%)
CIE-LAB	lab(56.39, -42.62, 52.23)
CIE-LCH	lch(56.39, 67.41, 129.21°)
OKLab	oklab(60.99% -0.119 0.1159)
OKLCH	oklch(60.99% 0.166 135.7)
XYZ	xyz(14.8685, 24.3038, 5.2037)
Luminance	0.2430 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51981F #661F98

analogous

#8D981F #51981F #1F982A

triadic

#51981F #1F5198 #981F51

tetradic

#51981F #1F8D98 #661F98 #982A1F

square

#51981F #1F8D98 #661F98 #982A1F

split-complementary

#51981F #2A1F98 #981F8D

monochromatic

#1B320A #366515 #51981F #6CCB29 #8DDC55

Accessibility & contrast

On white

3.58

#51981F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#51981F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51981F

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51981F	#FFFFFF	#000000	##000000
##51981F	1.00	3.58	5.86	5.86
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9E8B00

Deuteranopia (green-blind)

#94852D

Tritanopia (blue-blind)

#4E9282

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #51981f;
/* rgb */ color: rgb(81, 152, 31);
/* oklch */ color: oklch(61.0% 0.166 135.7);

Tailwind

colors: {
  custom: {
    50: '#89b765',
    500: '#51981f',
    950: '#000000',
  },
}

SCSS

$custom: #51981f;
$custom-light: #89b765;
$custom-dark: #000000;

JSON

{
  "hex": "#51981f",
  "rgb": {
    "r": 81,
    "g": 152,
    "b": 31
  },
  "hsl": {
    "h": 95.207,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.60987,
    "c": 0.16611,
    "h": 135.7
  },
  "luminance": 0.24305
}

Semantic roles & 50–950 ramp

primary

#51981F

secondary

#9353C0

accent

#3FE9A3

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51981F

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

Preview Lab → · Contrast checker → · Palette generator →