#518C17#518C17

#518C17 is a mid, vivid yellow-green. Relative luminance 0.206; OKLCH L 57.8% C 0.155 H 133.7°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#518C17
RGB	rgb(81, 140, 23)
HSL	hsl(90, 72%, 32%)
HSV	hsv(90, 84%, 55%)
CMYK	cmyk(42.1%, 0%, 83.6%, 45.1%)
CIE-LAB	lab(52.47, -38.01, 51.02)
CIE-LCH	lch(52.47, 63.63, 126.69°)
OKLab	oklab(57.76% -0.1071 0.1122)
OKLCH	oklch(57.76% 0.155 133.7)
XYZ	xyz(12.9259, 20.5667, 4.0991)
Luminance	0.2057 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518C17 #52178C

analogous

#8C8C17 #518C17 #178C17

triadic

#518C17 #17518C #8C1751

tetradic

#518C17 #178C8C #52178C #8C1717

square

#518C17 #178C8C #52178C #8C1717

split-complementary

#518C17 #17178C #8C178C

monochromatic

#142306 #33570E #518C17 #6FC120 #8EDF3E

Accessibility & contrast

On white

4.11

#518C17 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#518C17 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518C17

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518C17	#FFFFFF	#000000	##000000
##518C17	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928000

Deuteranopia (green-blind)

#8A7C25

Tritanopia (blue-blind)

#518677

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #518c17;
/* rgb */ color: rgb(81, 140, 23);
/* oklch */ color: oklch(57.8% 0.155 133.7);

Tailwind

colors: {
  custom: {
    50: '#88ae60',
    500: '#518c17',
    950: '#000000',
  },
}

SCSS

$custom: #518c17;
$custom-light: #88ae60;
$custom-dark: #000000;

JSON

{
  "hex": "#518c17",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 23
  },
  "hsl": {
    "h": 90.256,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.57759,
    "c": 0.15507,
    "h": 133.7
  },
  "luminance": 0.20567
}

Semantic roles & 50–950 ramp

primary

#518C17

secondary

#803FBF

accent

#39EF95

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #518C17

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

Preview Lab → · Contrast checker → · Palette generator →