#51801E#51801E

#51801E is a mid, vivid yellow-green. Relative luminance 0.173; OKLCH L 54.6% C 0.136 H 132.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#51801E
RGB	rgb(81, 128, 30)
HSL	hsl(89, 62%, 31%)
HSV	hsv(89, 77%, 50%)
CMYK	cmyk(36.7%, 0%, 76.6%, 49.8%)
CIE-LAB	lab(48.61, -32.30, 45.10)
CIE-LCH	lch(48.61, 55.48, 125.61°)
OKLab	oklab(54.61% -0.0912 0.1009)
OKLCH	oklch(54.61% 0.136 132.1)
XYZ	xyz(11.3467, 17.2809, 3.9658)
Luminance	0.1728 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51801E #4D1E80

analogous

#807E1E #51801E #20801E

triadic

#51801E #1E5180 #801E51

tetradic

#51801E #1E807E #4D1E80 #801E20

square

#51801E #1E807E #4D1E80 #801E20

split-complementary

#51801E #1E2080 #7E1E80

monochromatic

#121D07 #324E12 #51801E #70B22A #8FD345

Accessibility & contrast

On white

4.71

#51801E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#51801E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51801E

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51801E	#FFFFFF	#000000	##FFFFFF
##51801E	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)

#86760A

Deuteranopia (green-blind)

#7F7228

Tritanopia (blue-blind)

#527B6D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #51801e;
/* rgb */ color: rgb(81, 128, 30);
/* oklch */ color: oklch(54.6% 0.136 132.1);

Tailwind

colors: {
  custom: {
    50: '#86a561',
    500: '#51801e',
    950: '#000000',
  },
}

SCSS

$custom: #51801e;
$custom-light: #86a561;
$custom-dark: #000000;

JSON

{
  "hex": "#51801e",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 30
  },
  "hsl": {
    "h": 88.776,
    "s": 62.025,
    "l": 30.98
  },
  "oklch": {
    "l": 0.54614,
    "c": 0.13598,
    "h": 132.1
  },
  "luminance": 0.17281
}

Semantic roles & 50–950 ramp

primary

#51801E

secondary

#7B47B3

accent

#43E591

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #51801E

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

Preview Lab → · Contrast checker → · Palette generator →