#517D18#517D18

#517D18 is a mid, vivid yellow-green. Relative luminance 0.165; OKLCH L 53.8% C 0.135 H 131.0°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#517D18
RGB	rgb(81, 125, 24)
HSL	hsl(86, 68%, 29%)
HSV	hsv(86, 81%, 49%)
CMYK	cmyk(35.2%, 0%, 80.8%, 51%)
CIE-LAB	lab(47.60, -31.28, 46.24)
CIE-LCH	lch(47.60, 55.83, 124.08°)
OKLab	oklab(53.78% -0.0889 0.1022)
OKLCH	oklch(53.78% 0.135 131)
XYZ	xyz(10.8917, 16.4821, 3.4715)
Luminance	0.1648 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517D18 #44187D

analogous

#7D7718 #517D18 #1E7D18

triadic

#517D18 #18517D #7D1851

tetradic

#517D18 #187D77 #44187D #7D181E

square

#517D18 #187D77 #44187D #7D181E

split-complementary

#517D18 #181E7D #77187D

monochromatic

#111A05 #304A0E #517D18 #72B022 #92D937

Accessibility & contrast

On white

4.89

#517D18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#517D18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #517D18

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517D18	#FFFFFF	#000000	##FFFFFF
##517D18	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837300

Deuteranopia (green-blind)

#7D7023

Tritanopia (blue-blind)

#53776A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #517d18;
/* rgb */ color: rgb(81, 125, 24);
/* oklch */ color: oklch(53.8% 0.135 131.0);

Tailwind

colors: {
  custom: {
    50: '#86a35e',
    500: '#517d18',
    950: '#000000',
  },
}

SCSS

$custom: #517d18;
$custom-light: #86a35e;
$custom-dark: #000000;

JSON

{
  "hex": "#517d18",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 24
  },
  "hsl": {
    "h": 86.139,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.53777,
    "c": 0.13548,
    "h": 131
  },
  "luminance": 0.16483
}

Semantic roles & 50–950 ramp

primary

#517D18

secondary

#713FB2

accent

#3DEB89

background

#F8FAF5

surface

#F0F3E9

border

#CBCDC5

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #517D18

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

Preview Lab → · Contrast checker → · Palette generator →