#518A17#518A17

#518A17 is a mid, vivid yellow-green. Relative luminance 0.200; OKLCH L 57.2% C 0.153 H 133.4°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#518A17
RGB	rgb(81, 138, 23)
HSL	hsl(90, 71%, 32%)
HSV	hsv(90, 83%, 54%)
CMYK	cmyk(41.3%, 0%, 83.3%, 45.9%)
CIE-LAB	lab(51.82, -37.15, 50.44)
CIE-LCH	lch(51.82, 62.64, 126.38°)
OKLab	oklab(57.23% -0.1048 0.1109)
OKLCH	oklch(57.23% 0.153 133.4)
XYZ	xyz(12.6363, 19.9875, 4.0026)
Luminance	0.1999 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518A17 #50178A

analogous

#8A8A17 #518A17 #188A17

triadic

#518A17 #17518A #8A1751

tetradic

#518A17 #178A8A #50178A #8A1718

square

#518A17 #178A8A #50178A #8A1718

split-complementary

#518A17 #17188A #8A178A

monochromatic

#132106 #32560E #518A17 #70BE20 #8EDF3D

Accessibility & contrast

On white

4.20

#518A17 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#518A17 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518A17

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518A17	#FFFFFF	#000000	##000000
##518A17	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#907E00

Deuteranopia (green-blind)

#887A25

Tritanopia (blue-blind)

#518475

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #518a17;
/* rgb */ color: rgb(81, 138, 23);
/* oklch */ color: oklch(57.2% 0.153 133.4);

Tailwind

colors: {
  custom: {
    50: '#87ac60',
    500: '#518a17',
    950: '#000000',
  },
}

SCSS

$custom: #518a17;
$custom-light: #87ac60;
$custom-dark: #000000;

JSON

{
  "hex": "#518a17",
  "rgb": {
    "r": 81,
    "g": 138,
    "b": 23
  },
  "hsl": {
    "h": 89.739,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.57228,
    "c": 0.15258,
    "h": 133.4
  },
  "luminance": 0.19988
}

Semantic roles & 50–950 ramp

primary

#518A17

secondary

#7E3FBE

accent

#3AEE93

background

#F8FAF5

surface

#F0F4EA

border

#CBCEC6

text

#0C1005

muted

#7D7F79

Preview Lab

Preview with #518A17

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

Preview Lab → · Contrast checker → · Palette generator →