#51891D#51891D

#51891D is a mid, vivid yellow-green. Relative luminance 0.197; OKLCH L 57.0% C 0.148 H 133.6°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#51891D
RGB	rgb(81, 137, 29)
HSL	hsl(91, 65%, 33%)
HSV	hsv(91, 79%, 54%)
CMYK	cmyk(40.9%, 0%, 78.8%, 46.3%)
CIE-LAB	lab(51.53, -36.39, 48.28)
CIE-LCH	lch(51.53, 60.46, 127.01°)
OKLab	oklab(57% -0.1023 0.1073)
OKLCH	oklch(57% 0.148 133.6)
XYZ	xyz(12.5606, 19.7287, 4.3084)
Luminance	0.1973 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51891D #551D89

analogous

#87891D #51891D #1D891F

triadic

#51891D #1D5189 #891D51

tetradic

#51891D #1D8789 #551D89 #891F1D

square

#51891D #1D8789 #551D89 #891F1D

split-complementary

#51891D #1F1D89 #891D87

monochromatic

#152408 #335612 #51891D #6FBC28 #8ED848

Accessibility & contrast

On white

4.25

#51891D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#51891D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51891D

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51891D	#FFFFFF	#000000	##000000
##51891D	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E02

Deuteranopia (green-blind)

#877928

Tritanopia (blue-blind)

#518375

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #51891d;
/* rgb */ color: rgb(81, 137, 29);
/* oklch */ color: oklch(57.0% 0.148 133.6);

Tailwind

colors: {
  custom: {
    50: '#87ac62',
    500: '#51891d',
    950: '#000000',
  },
}

SCSS

$custom: #51891d;
$custom-light: #87ac62;
$custom-dark: #000000;

JSON

{
  "hex": "#51891d",
  "rgb": {
    "r": 81,
    "g": 137,
    "b": 29
  },
  "hsl": {
    "h": 91.111,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.56997,
    "c": 0.1483,
    "h": 133.6
  },
  "luminance": 0.19729
}

Semantic roles & 50–950 ramp

primary

#51891D

secondary

#8347BA

accent

#40E897

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #51891D

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

Preview Lab → · Contrast checker → · Palette generator →