#518A1B#518A1B

#518A1B is a mid, vivid yellow-green. Relative luminance 0.200; OKLCH L 57.3% C 0.151 H 133.6°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#518A1B
RGB	rgb(81, 138, 27)
HSL	hsl(91, 67%, 32%)
HSV	hsv(91, 80%, 54%)
CMYK	cmyk(41.3%, 0%, 80.4%, 45.9%)
CIE-LAB	lab(51.84, -36.95, 49.23)
CIE-LCH	lch(51.84, 61.55, 126.88°)
OKLab	oklab(57.25% -0.104 0.109)
OKLCH	oklch(57.25% 0.151 133.6)
XYZ	xyz(12.6794, 20.0048, 4.2299)
Luminance	0.2001 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518A1B #541B8A

analogous

#898A1B #518A1B #1B8A1D

triadic

#518A1B #1B518A #8A1B51

tetradic

#518A1B #1B898A #541B8A #8A1D1B

square

#518A1B #1B898A #541B8A #8A1D1B

split-complementary

#518A1B #1D1B8A #8A1B89

monochromatic

#152407 #335711 #518A1B #6FBD25 #8EDB45

Accessibility & contrast

On white

4.20

#518A1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#518A1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518A1B

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518A1B	#FFFFFF	#000000	##000000
##518A1B	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)

#887A27

Tritanopia (blue-blind)

#518475

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #518a1b;
/* rgb */ color: rgb(81, 138, 27);
/* oklch */ color: oklch(57.3% 0.151 133.6);

Tailwind

colors: {
  custom: {
    50: '#87ac61',
    500: '#518a1b',
    950: '#000000',
  },
}

SCSS

$custom: #518a1b;
$custom-light: #87ac61;
$custom-dark: #000000;

JSON

{
  "hex": "#518a1b",
  "rgb": {
    "r": 81,
    "g": 138,
    "b": 27
  },
  "hsl": {
    "h": 90.811,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.5725,
    "c": 0.15064,
    "h": 133.6
  },
  "luminance": 0.20005
}

Semantic roles & 50–950 ramp

primary

#518A1B

secondary

#8245BC

accent

#3EEA96

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #518A1B

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

Preview Lab → · Contrast checker → · Palette generator →