#51881E#51881E

#51881E is a mid, vivid yellow-green. Relative luminance 0.195; OKLCH L 56.7% C 0.146 H 133.6°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#51881E
RGB	rgb(81, 136, 30)
HSL	hsl(91, 64%, 33%)
HSV	hsv(91, 78%, 53%)
CMYK	cmyk(40.4%, 0%, 77.9%, 46.7%)
CIE-LAB	lab(51.21, -35.90, 47.63)
CIE-LCH	lch(51.21, 59.64, 127.00°)
OKLab	oklab(56.74% -0.1009 0.1061)
OKLCH	oklch(56.74% 0.146 133.6)
XYZ	xyz(12.4316, 19.4508, 4.3274)
Luminance	0.1945 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51881E #551E88

analogous

#86881E #51881E #1E8820

triadic

#51881E #1E5188 #881E51

tetradic

#51881E #1E8688 #551E88 #88201E

square

#51881E #1E8688 #551E88 #88201E

split-complementary

#51881E #201E88 #881E86

monochromatic

#152408 #335613 #51881E #6FBA29 #8ED749

Accessibility & contrast

On white

4.29

#51881E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#51881E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51881E

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51881E	#FFFFFF	#000000	##000000
##51881E	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7D05

Deuteranopia (green-blind)

#867829

Tritanopia (blue-blind)

#518274

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #51881e;
/* rgb */ color: rgb(81, 136, 30);
/* oklch */ color: oklch(56.7% 0.146 133.6);

Tailwind

colors: {
  custom: {
    50: '#87ab62',
    500: '#51881e',
    950: '#000000',
  },
}

SCSS

$custom: #51881e;
$custom-light: #87ab62;
$custom-dark: #000000;

JSON

{
  "hex": "#51881e",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 30
  },
  "hsl": {
    "h": 91.132,
    "s": 63.855,
    "l": 32.549
  },
  "oklch": {
    "l": 0.56738,
    "c": 0.14645,
    "h": 133.6
  },
  "luminance": 0.19451
}

Semantic roles & 50–950 ramp

primary

#51881E

secondary

#8349B9

accent

#41E797

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #51881E

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

Preview Lab → · Contrast checker → · Palette generator →