#51871D#51871D

#51871D is a mid, vivid yellow-green. Relative luminance 0.192; OKLCH L 56.5% C 0.146 H 133.3°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#51871D
RGB	rgb(81, 135, 29)
HSL	hsl(91, 65%, 32%)
HSV	hsv(91, 79%, 53%)
CMYK	cmyk(40%, 0%, 78.5%, 47.1%)
CIE-LAB	lab(50.88, -35.52, 47.66)
CIE-LCH	lch(50.88, 59.44, 126.69°)
OKLab	oklab(56.47% -0.1 0.106)
OKLCH	oklch(56.47% 0.146 133.3)
XYZ	xyz(12.2789, 19.1654, 4.2145)
Luminance	0.1917 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51871D #531D87

analogous

#86871D #51871D #1D871E

triadic

#51871D #1D5187 #871D51

tetradic

#51871D #1D8687 #531D87 #871E1D

square

#51871D #1D8687 #531D87 #871E1D

split-complementary

#51871D #1E1D87 #871D86

monochromatic

#152207 #335512 #51871D #6FB928 #8ED747

Accessibility & contrast

On white

4.34

#51871D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#51871D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51871D

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51871D	#FFFFFF	#000000	##000000
##51871D	1.00	4.34	4.83	4.83
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C03

Deuteranopia (green-blind)

#857828

Tritanopia (blue-blind)

#518173

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #51871d;
/* rgb */ color: rgb(81, 135, 29);
/* oklch */ color: oklch(56.5% 0.146 133.3);

Tailwind

colors: {
  custom: {
    50: '#87aa62',
    500: '#51871d',
    950: '#000000',
  },
}

SCSS

$custom: #51871d;
$custom-light: #87aa62;
$custom-dark: #000000;

JSON

{
  "hex": "#51871d",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 29
  },
  "hsl": {
    "h": 90.566,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.56466,
    "c": 0.14573,
    "h": 133.3
  },
  "luminance": 0.19166
}

Semantic roles & 50–950 ramp

primary

#51871D

secondary

#8146B9

accent

#40E895

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #51871D

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

Preview Lab → · Contrast checker → · Palette generator →