#18581B#18581B

#18581B is a dark, moderate green. Relative luminance 0.073; OKLCH L 40.6% C 0.113 H 143.8°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#18581B
RGB	rgb(24, 88, 27)
HSL	hsl(123, 57%, 22%)
HSV	hsv(123, 73%, 35%)
CMYK	cmyk(72.7%, 0%, 69.3%, 65.5%)
CIE-LAB	lab(32.37, -33.67, 28.75)
CIE-LCH	lch(32.37, 44.27, 139.51°)
OKLab	oklab(40.59% -0.0913 0.0668)
OKLCH	oklch(40.59% 0.113 143.8)
XYZ	xyz(4.0640, 7.2523, 2.2224)
Luminance	0.0725 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18581B #581855

analogous

#355818 #18581B #18583B

triadic

#18581B #1B1858 #581B18

tetradic

#18581B #183558 #581855 #583B18

square

#18581B #183558 #581855 #583B18

split-complementary

#18581B #3B1858 #581835

monochromatic

#071807 #0B280C #18581B #25882A #32B839

Accessibility & contrast

On white

8.57

#18581B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#18581B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18581B

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18581B	#FFFFFF	#000000	##FFFFFF
##18581B	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F14

Deuteranopia (green-blind)

#524A20

Tritanopia (blue-blind)

#07554B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #18581b;
/* rgb */ color: rgb(24, 88, 27);
/* oklch */ color: oklch(40.6% 0.113 143.8);

Tailwind

colors: {
  custom: {
    50: '#5f885a',
    500: '#18581b',
    950: '#000000',
  },
}

SCSS

$custom: #18581b;
$custom-light: #5f885a;
$custom-dark: #000000;

JSON

{
  "hex": "#18581b",
  "rgb": {
    "r": 24,
    "g": 88,
    "b": 27
  },
  "hsl": {
    "h": 122.813,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.40586,
    "c": 0.11311,
    "h": 143.8
  },
  "luminance": 0.07253
}

Semantic roles & 50–950 ramp

primary

#18581B

secondary

#8F3D8B

accent

#47D9E0

background

#F5F8F5

surface

#EAF0E9

border

#C6CBC5

text

#050B04

muted

#797C79

Preview Lab

Preview with #18581B

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

Preview Lab → · Contrast checker → · Palette generator →