#518221#518221

#518221 is a mid, vivid yellow-green. Relative luminance 0.178; OKLCH L 55.2% C 0.137 H 132.8°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#518221
RGB	rgb(81, 130, 33)
HSL	hsl(90, 60%, 32%)
HSV	hsv(90, 75%, 51%)
CMYK	cmyk(37.7%, 0%, 74.6%, 49%)
CIE-LAB	lab(49.28, -33.02, 44.63)
CIE-LCH	lch(49.28, 55.52, 126.49°)
OKLab	oklab(55.17% -0.0929 0.1003)
OKLCH	oklch(55.17% 0.137 132.8)
XYZ	xyz(11.6503, 17.8239, 4.2651)
Luminance	0.1782 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518221 #522182

analogous

#828221 #518221 #218221

triadic

#518221 #215182 #822151

tetradic

#518221 #218282 #522182 #822121

square

#518221 #218282 #522182 #822121

split-complementary

#518221 #212182 #822182

monochromatic

#142008 #335115 #518221 #6FB32D #8ED24C

Accessibility & contrast

On white

4.60

#518221 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#518221 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #518221

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518221	#FFFFFF	#000000	##FFFFFF
##518221	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#88780F

Deuteranopia (green-blind)

#81742A

Tritanopia (blue-blind)

#527D6F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #518221;
/* rgb */ color: rgb(81, 130, 33);
/* oklch */ color: oklch(55.2% 0.137 132.8);

Tailwind

colors: {
  custom: {
    50: '#86a663',
    500: '#518221',
    950: '#000000',
  },
}

SCSS

$custom: #518221;
$custom-light: #86a663;
$custom-dark: #000000;

JSON

{
  "hex": "#518221",
  "rgb": {
    "r": 81,
    "g": 130,
    "b": 33
  },
  "hsl": {
    "h": 90.309,
    "s": 59.509,
    "l": 31.961
  },
  "oklch": {
    "l": 0.55167,
    "c": 0.13674,
    "h": 132.8
  },
  "luminance": 0.17824
}

Semantic roles & 50–950 ramp

primary

#518221

secondary

#804AB4

accent

#45E395

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C0F06

muted

#7D7F7A

Preview Lab

Preview with #518221

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

Preview Lab → · Contrast checker → · Palette generator →