#181C10#181C10

#181C10 is a very dark, muted yellow-green. Relative luminance 0.011; OKLCH L 21.8% C 0.023 H 123.3°. Best body text is #FFFFFF at 17.32:1 contrast (WCAG AA passes).

Color values

HEX	#181C10
RGB	rgb(24, 28, 16)
HSL	hsl(80, 27%, 9%)
HSV	hsv(80, 43%, 11%)
CMYK	cmyk(14.3%, 0%, 42.9%, 89%)
CIE-LAB	lab(9.50, -4.70, 7.10)
CIE-LCH	lch(9.50, 8.51, 123.49°)
OKLab	oklab(21.82% -0.0127 0.0193)
OKLCH	oklch(21.82% 0.023 123.3)
XYZ	xyz(0.8855, 1.0621, 0.6485)
Luminance	0.0106 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C10 #14101C

analogous

#1C1A10 #181C10 #121C10

triadic

#181C10 #10181C #1C1018

tetradic

#181C10 #101C1A #14101C #1C1012

square

#181C10 #101C1A #14101C #1C1012

split-complementary

#181C10 #10121C #1A101C

monochromatic

#11130B #11130B #181C10 #394326 #5B6A3D

Accessibility & contrast

On white

17.32

#181C10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#181C10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C10

17.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C10	#FFFFFF	#000000	##FFFFFF
##181C10	1.00	17.32	1.21	17.32
#FFFFFF	17.32	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1B0F

Deuteranopia (green-blind)

#1D1A11

Tritanopia (blue-blind)

#191B19

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #181c10;
/* rgb */ color: rgb(24, 28, 16);
/* oklch */ color: oklch(21.8% 0.023 123.3);

Tailwind

colors: {
  custom: {
    50: '#54584e',
    500: '#181c10',
    950: '#000000',
  },
}

SCSS

$custom: #181c10;
$custom-light: #54584e;
$custom-dark: #000000;

JSON

{
  "hex": "#181c10",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 16
  },
  "hsl": {
    "h": 80,
    "s": 27.273,
    "l": 8.627
  },
  "oklch": {
    "l": 0.21815,
    "c": 0.02309,
    "h": 123.3
  },
  "luminance": 0.01062
}

Semantic roles & 50–950 ramp

primary

#181C10

secondary

#403751

accent

#64C484

background

#F4F5F4

surface

#E7E9E7

border

#C3C5C3

text

#020301

muted

#787877

Preview Lab

Preview with #181C10

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

Preview Lab → · Contrast checker → · Palette generator →