#518018#518018

#518018 is a mid, vivid yellow-green. Relative luminance 0.173; OKLCH L 54.6% C 0.139 H 131.6°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#518018
RGB	rgb(81, 128, 24)
HSL	hsl(87, 68%, 30%)
HSV	hsv(87, 81%, 50%)
CMYK	cmyk(36.7%, 0%, 81.3%, 49.8%)
CIE-LAB	lab(48.58, -32.66, 47.15)
CIE-LCH	lch(48.58, 57.36, 124.71°)
OKLab	oklab(54.58% -0.0926 0.1042)
OKLCH	oklch(54.58% 0.139 131.6)
XYZ	xyz(11.2773, 17.2532, 3.6000)
Luminance	0.1725 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518018 #471880

analogous

#807B18 #518018 #1D8018

triadic

#518018 #185180 #801851

tetradic

#518018 #18807B #471880 #80181D

square

#518018 #18807B #471880 #80181D

split-complementary

#518018 #181D80 #7B1880

monochromatic

#101A05 #304C0E #518018 #72B422 #91DA39

Accessibility & contrast

On white

4.72

#518018 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#518018 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #518018

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518018	#FFFFFF	#000000	##FFFFFF
##518018	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)

#867600

Deuteranopia (green-blind)

#7F7223

Tritanopia (blue-blind)

#527A6D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #518018;
/* rgb */ color: rgb(81, 128, 24);
/* oklch */ color: oklch(54.6% 0.139 131.6);

Tailwind

colors: {
  custom: {
    50: '#86a55f',
    500: '#518018',
    950: '#000000',
  },
}

SCSS

$custom: #518018;
$custom-light: #86a55f;
$custom-dark: #000000;

JSON

{
  "hex": "#518018",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 24
  },
  "hsl": {
    "h": 87.115,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.54575,
    "c": 0.13938,
    "h": 131.6
  },
  "luminance": 0.17254
}

Semantic roles & 50–950 ramp

primary

#518018

secondary

#7440B4

accent

#3DEB8B

background

#F8FAF5

surface

#F0F4EA

border

#CBCEC6

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #518018

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

Preview Lab → · Contrast checker → · Palette generator →