#51801A#51801A

#51801A is a mid, vivid yellow-green. Relative luminance 0.173; OKLCH L 54.6% C 0.138 H 131.8°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#51801A
RGB	rgb(81, 128, 26)
HSL	hsl(88, 66%, 30%)
HSV	hsv(88, 80%, 50%)
CMYK	cmyk(36.7%, 0%, 79.7%, 49.8%)
CIE-LAB	lab(48.59, -32.55, 46.50)
CIE-LCH	lch(48.59, 56.76, 124.99°)
OKLab	oklab(54.59% -0.0922 0.1031)
OKLCH	oklch(54.59% 0.138 131.8)
XYZ	xyz(11.2988, 17.2618, 3.7136)
Luminance	0.1726 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51801A #491A80

analogous

#807C1A #51801A #1E801A

triadic

#51801A #1A5180 #801A51

tetradic

#51801A #1A807C #491A80 #801A1E

square

#51801A #1A807C #491A80 #801A1E

split-complementary

#51801A #1A1E80 #7C1A80

monochromatic

#111A05 #314D10 #51801A #71B324 #90D83D

Accessibility & contrast

On white

4.72

#51801A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#51801A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51801A

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51801A	#FFFFFF	#000000	##FFFFFF
##51801A	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867601

Deuteranopia (green-blind)

#7F7225

Tritanopia (blue-blind)

#527A6D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #51801a;
/* rgb */ color: rgb(81, 128, 26);
/* oklch */ color: oklch(54.6% 0.138 131.8);

Tailwind

colors: {
  custom: {
    50: '#86a55f',
    500: '#51801a',
    950: '#000000',
  },
}

SCSS

$custom: #51801a;
$custom-light: #86a55f;
$custom-dark: #000000;

JSON

{
  "hex": "#51801a",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 26
  },
  "hsl": {
    "h": 87.647,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.54587,
    "c": 0.13831,
    "h": 131.8
  },
  "luminance": 0.17262
}

Semantic roles & 50–950 ramp

primary

#51801A

secondary

#7642B4

accent

#3FE98D

background

#F8FAF5

surface

#F0F4EA

border

#CBCEC6

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #51801A

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

Preview Lab → · Contrast checker → · Palette generator →