#51811F#51811F

#51811F is a mid, vivid yellow-green. Relative luminance 0.175; OKLCH L 54.9% C 0.137 H 132.4°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#51811F
RGB	rgb(81, 129, 31)
HSL	hsl(89, 61%, 31%)
HSV	hsv(89, 76%, 51%)
CMYK	cmyk(37.2%, 0%, 76%, 49.4%)
CIE-LAB	lab(48.94, -32.70, 45.06)
CIE-LCH	lch(48.94, 55.67, 125.97°)
OKLab	oklab(54.89% -0.0922 0.1009)
OKLCH	oklch(54.89% 0.137 132.4)
XYZ	xyz(11.4908, 17.5483, 4.0778)
Luminance	0.1755 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51811F #4F1F81

analogous

#81801F #51811F #20811F

triadic

#51811F #1F5181 #811F51

tetradic

#51811F #1F8180 #4F1F81 #811F20

square

#51811F #1F8180 #4F1F81 #811F20

split-complementary

#51811F #1F2081 #801F81

monochromatic

#131E07 #325013 #51811F #70B22B #8FD347

Accessibility & contrast

On white

4.66

#51811F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#51811F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #51811F

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51811F	#FFFFFF	#000000	##FFFFFF
##51811F	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#87770C

Deuteranopia (green-blind)

#807329

Tritanopia (blue-blind)

#527C6E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #51811f;
/* rgb */ color: rgb(81, 129, 31);
/* oklch */ color: oklch(54.9% 0.137 132.4);

Tailwind

colors: {
  custom: {
    50: '#86a662',
    500: '#51811f',
    950: '#000000',
  },
}

SCSS

$custom: #51811f;
$custom-light: #86a662;
$custom-dark: #000000;

JSON

{
  "hex": "#51811f",
  "rgb": {
    "r": 81,
    "g": 129,
    "b": 31
  },
  "hsl": {
    "h": 89.388,
    "s": 61.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.54887,
    "c": 0.13668,
    "h": 132.4
  },
  "luminance": 0.17549
}

Semantic roles & 50–950 ramp

primary

#51811F

secondary

#7D48B4

accent

#43E492

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #51811F

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

Preview Lab → · Contrast checker → · Palette generator →