#51801F#51801F

#51801F is a mid, vivid yellow-green. Relative luminance 0.173; OKLCH L 54.6% C 0.135 H 132.2°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#51801F
RGB	rgb(81, 128, 31)
HSL	hsl(89, 61%, 31%)
HSV	hsv(89, 76%, 50%)
CMYK	cmyk(36.7%, 0%, 75.8%, 49.8%)
CIE-LAB	lab(48.62, -32.24, 44.74)
CIE-LCH	lch(48.62, 55.14, 125.78°)
OKLab	oklab(54.62% -0.0909 0.1002)
OKLCH	oklch(54.62% 0.135 132.2)
XYZ	xyz(11.3597, 17.2861, 4.0341)
Luminance	0.1729 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51801F #4E1F80

analogous

#807E1F #51801F #20801F

triadic

#51801F #1F5180 #801F51

tetradic

#51801F #1F807E #4E1F80 #801F20

square

#51801F #1F807E #4E1F80 #801F20

split-complementary

#51801F #1F2080 #7E1F80

monochromatic

#131D07 #324F13 #51801F #70B12B #8FD247

Accessibility & contrast

On white

4.71

#51801F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#51801F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51801F

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51801F	#FFFFFF	#000000	##FFFFFF
##51801F	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#86760C

Deuteranopia (green-blind)

#7F7228

Tritanopia (blue-blind)

#527B6D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #51801f;
/* rgb */ color: rgb(81, 128, 31);
/* oklch */ color: oklch(54.6% 0.135 132.2);

Tailwind

colors: {
  custom: {
    50: '#86a562',
    500: '#51801f',
    950: '#000000',
  },
}

SCSS

$custom: #51801f;
$custom-light: #86a562;
$custom-dark: #000000;

JSON

{
  "hex": "#51801f",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 31
  },
  "hsl": {
    "h": 89.072,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.54621,
    "c": 0.13535,
    "h": 132.2
  },
  "luminance": 0.17287
}

Semantic roles & 50–950 ramp

primary

#51801F

secondary

#7C48B3

accent

#44E491

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #51801F

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

Preview Lab → · Contrast checker → · Palette generator →