#181F00#181F00

#181F00 is a very dark, muted yellow-green. Relative luminance 0.012; OKLCH L 22.4% C 0.054 H 121.0°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).

Color values

HEX	#181F00
RGB	rgb(24, 31, 0)
HSL	hsl(74, 100%, 6%)
HSV	hsv(74, 100%, 12%)
CMYK	cmyk(22.6%, 0%, 100%, 87.8%)
CIE-LAB	lab(10.37, -9.19, 15.28)
CIE-LCH	lch(10.37, 17.83, 121.01°)
OKLab	oklab(22.42% -0.0277 0.0461)
OKLCH	oklch(22.42% 0.054 121)
XYZ	xyz(0.8667, 1.1742, 0.1810)
Luminance	0.0117 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F00 #07001F

analogous

#1F1600 #181F00 #081F00

triadic

#181F00 #00181F #1F0018

tetradic

#181F00 #001F16 #07001F #1F0008

square

#181F00 #001F16 #07001F #1F0008

split-complementary

#181F00 #00081F #16001F

monochromatic

#181F00 #181F00 #181F00 #475C00 #779900

Accessibility & contrast

On white

17.01

#181F00 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#181F00 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F00

17.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F00	#FFFFFF	#000000	##FFFFFF
##181F00	1.00	17.01	1.23	17.01
#FFFFFF	17.01	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221C00

Deuteranopia (green-blind)

#211C02

Tritanopia (blue-blind)

#1A1D19

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #181f00;
/* rgb */ color: rgb(24, 31, 0);
/* oklch */ color: oklch(22.4% 0.054 121.0);

Tailwind

colors: {
  custom: {
    50: '#545a46',
    500: '#181f00',
    950: '#000000',
  },
}

SCSS

$custom: #181f00;
$custom-light: #545a46;
$custom-dark: #000000;

JSON

{
  "hex": "#181f00",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 0
  },
  "hsl": {
    "h": 73.548,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.22418,
    "c": 0.05376,
    "h": 121
  },
  "luminance": 0.01174
}

Semantic roles & 50–950 ramp

primary

#181F00

secondary

#261268

accent

#29FF59

background

#F4F5F3

surface

#E7E9E5

border

#C3C5C1

text

#030300

muted

#787877

Preview Lab

Preview with #181F00

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

Preview Lab → · Contrast checker → · Palette generator →