#517B18#517B18

#517B18 is a mid, vivid yellow-green. Relative luminance 0.160; OKLCH L 53.2% C 0.133 H 130.5°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#517B18
RGB	rgb(81, 123, 24)
HSL	hsl(85, 67%, 29%)
HSV	hsv(85, 80%, 48%)
CMYK	cmyk(34.1%, 0%, 80.5%, 51.8%)
CIE-LAB	lab(46.95, -30.35, 45.63)
CIE-LCH	lch(46.95, 54.80, 123.63°)
OKLab	oklab(53.25% -0.0864 0.101)
OKLCH	oklch(53.25% 0.133 130.5)
XYZ	xyz(10.6411, 15.9808, 3.3879)
Luminance	0.1598 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517B18 #42187B

analogous

#7B7418 #517B18 #1F7B18

triadic

#517B18 #18517B #7B1851

tetradic

#517B18 #187B74 #42187B #7B181F

square

#517B18 #187B74 #42187B #7B181F

split-complementary

#517B18 #181F7B #74187B

monochromatic

#111A05 #2F480E #517B18 #73AE22 #93D836

Accessibility & contrast

On white

5.00

#517B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#517B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #517B18

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517B18	#FFFFFF	#000000	##FFFFFF
##517B18	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817100

Deuteranopia (green-blind)

#7B6E22

Tritanopia (blue-blind)

#537569

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #517b18;
/* rgb */ color: rgb(81, 123, 24);
/* oklch */ color: oklch(53.2% 0.133 130.5);

Tailwind

colors: {
  custom: {
    50: '#86a15e',
    500: '#517b18',
    950: '#000000',
  },
}

SCSS

$custom: #517b18;
$custom-light: #86a15e;
$custom-dark: #000000;

JSON

{
  "hex": "#517b18",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 24
  },
  "hsl": {
    "h": 85.455,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.53246,
    "c": 0.13286,
    "h": 130.5
  },
  "luminance": 0.15981
}

Semantic roles & 50–950 ramp

primary

#517B18

secondary

#6F3FB0

accent

#3EEA87

background

#F8F9F5

surface

#F0F2E9

border

#CBCCC5

text

#0B0F05

muted

#7C7E79

Preview Lab

Preview with #517B18

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

Preview Lab → · Contrast checker → · Palette generator →