#51871C#51871C

#51871C is a mid, vivid yellow-green. Relative luminance 0.192; OKLCH L 56.5% C 0.146 H 133.2°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#51871C
RGB	rgb(81, 135, 28)
HSL	hsl(90, 66%, 32%)
HSV	hsv(90, 79%, 53%)
CMYK	cmyk(40%, 0%, 79.3%, 47.1%)
CIE-LAB	lab(50.87, -35.57, 47.99)
CIE-LCH	lch(50.87, 59.74, 126.55°)
OKLab	oklab(56.46% -0.1002 0.1066)
OKLCH	oklch(56.46% 0.146 133.2)
XYZ	xyz(12.2667, 19.1605, 4.1504)
Luminance	0.1916 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51871C #521C87

analogous

#87871C #51871C #1C871C

triadic

#51871C #1C5187 #871C51

tetradic

#51871C #1C8787 #521C87 #871C1C

square

#51871C #1C8787 #521C87 #871C1C

split-complementary

#51871C #1C1C87 #871C87

monochromatic

#142207 #335411 #51871C #6FBA27 #8ED845

Accessibility & contrast

On white

4.35

#51871C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#51871C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51871C

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51871C	#FFFFFF	#000000	##000000
##51871C	1.00	4.35	4.83	4.83
#FFFFFF	4.35	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)

#8D7C01

Deuteranopia (green-blind)

#857827

Tritanopia (blue-blind)

#518173

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #51871c;
/* rgb */ color: rgb(81, 135, 28);
/* oklch */ color: oklch(56.5% 0.146 133.2);

Tailwind

colors: {
  custom: {
    50: '#87aa61',
    500: '#51871c',
    950: '#000000',
  },
}

SCSS

$custom: #51871c;
$custom-light: #87aa61;
$custom-dark: #000000;

JSON

{
  "hex": "#51871c",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 28
  },
  "hsl": {
    "h": 90.28,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.56459,
    "c": 0.14628,
    "h": 133.2
  },
  "luminance": 0.19161
}

Semantic roles & 50–950 ramp

primary

#51871C

secondary

#8045BA

accent

#3FE995

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #51871C

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

Preview Lab → · Contrast checker → · Palette generator →