#18591B#18591B

#18591B is a dark, moderate green. Relative luminance 0.074; OKLCH L 40.9% C 0.114 H 143.8°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#18591B
RGB	rgb(24, 89, 27)
HSL	hsl(123, 58%, 22%)
HSV	hsv(123, 73%, 35%)
CMYK	cmyk(73%, 0%, 69.7%, 65.1%)
CIE-LAB	lab(32.74, -34.07, 29.15)
CIE-LCH	lch(32.74, 44.84, 139.45°)
OKLab	oklab(40.89% -0.0923 0.0677)
OKLCH	oklch(40.89% 0.114 143.8)
XYZ	xyz(4.1466, 7.4176, 2.2499)
Luminance	0.0742 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18591B #591856

analogous

#365918 #18591B #18593C

triadic

#18591B #1B1859 #591B18

tetradic

#18591B #183659 #591856 #593C18

square

#18591B #183659 #591856 #593C18

split-complementary

#18591B #3C1859 #591836

monochromatic

#061807 #0B290C #18591B #25892A #32B938

Accessibility & contrast

On white

8.46

#18591B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#18591B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18591B

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18591B	#FFFFFF	#000000	##FFFFFF
##18591B	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5013

Deuteranopia (green-blind)

#534B20

Tritanopia (blue-blind)

#06564C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18591b;
/* rgb */ color: rgb(24, 89, 27);
/* oklch */ color: oklch(40.9% 0.114 143.8);

Tailwind

colors: {
  custom: {
    50: '#5f895a',
    500: '#18591b',
    950: '#000000',
  },
}

SCSS

$custom: #18591b;
$custom-light: #5f895a;
$custom-dark: #000000;

JSON

{
  "hex": "#18591b",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 27
  },
  "hsl": {
    "h": 122.769,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.40888,
    "c": 0.11448,
    "h": 143.8
  },
  "luminance": 0.07418
}

Semantic roles & 50–950 ramp

primary

#18591B

secondary

#903D8C

accent

#47DAE1

background

#F5F8F5

surface

#EAF0E9

border

#C6CBC5

text

#050B04

muted

#797C79

Preview Lab

Preview with #18591B

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

Preview Lab → · Contrast checker → · Palette generator →