#51871E#51871E

#51871E is a mid, vivid yellow-green. Relative luminance 0.192; OKLCH L 56.5% C 0.145 H 133.4°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#51871E
RGB	rgb(81, 135, 30)
HSL	hsl(91, 64%, 32%)
HSV	hsv(91, 78%, 53%)
CMYK	cmyk(40%, 0%, 77.8%, 47.1%)
CIE-LAB	lab(50.89, -35.45, 47.31)
CIE-LCH	lch(50.89, 59.12, 126.85°)
OKLab	oklab(56.47% -0.0997 0.1055)
OKLCH	oklch(56.47% 0.145 133.4)
XYZ	xyz(12.2915, 19.1704, 4.2807)
Luminance	0.1917 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51871E #541E87

analogous

#86871E #51871E #1E8720

triadic

#51871E #1E5187 #871E51

tetradic

#51871E #1E8687 #541E87 #87201E

square

#51871E #1E8687 #541E87 #87201E

split-complementary

#51871E #201E87 #871E86

monochromatic

#152308 #335513 #51871E #6FB929 #8ED749

Accessibility & contrast

On white

4.34

#51871E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#51871E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51871E

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51871E	#FFFFFF	#000000	##000000
##51871E	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)

#8D7C06

Deuteranopia (green-blind)

#857829

Tritanopia (blue-blind)

#518173

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #51871e;
/* rgb */ color: rgb(81, 135, 30);
/* oklch */ color: oklch(56.5% 0.145 133.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#51871e",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 30
  },
  "hsl": {
    "h": 90.857,
    "s": 63.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56472,
    "c": 0.14516,
    "h": 133.4
  },
  "luminance": 0.19171
}

Semantic roles & 50–950 ramp

primary

#51871E

secondary

#8248B9

accent

#41E796

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #51871E

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

Preview Lab → · Contrast checker → · Palette generator →