#181C04#181C04

#181C04 is a very dark, muted yellow-green. Relative luminance 0.010; OKLCH L 21.6% C 0.042 H 117.7°. Best body text is #FFFFFF at 17.40:1 contrast (WCAG AA passes).

Color values

HEX	#181C04
RGB	rgb(24, 28, 4)
HSL	hsl(70, 75%, 6%)
HSV	hsv(70, 86%, 11%)
CMYK	cmyk(14.3%, 0%, 85.7%, 89%)
CIE-LAB	lab(9.27, -6.61, 12.10)
CIE-LCH	lch(9.27, 13.78, 118.64°)
OKLab	oklab(21.56% -0.0195 0.0373)
OKLCH	oklch(21.56% 0.042 117.7)
XYZ	xyz(0.8139, 1.0335, 0.2714)
Luminance	0.0103 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C04 #08041C

analogous

#1C1404 #181C04 #0C1C04

triadic

#181C04 #04181C #1C0418

tetradic

#181C04 #041C14 #08041C #1C040C

square

#181C04 #041C14 #08041C #1C040C

split-complementary

#181C04 #040C1C #14041C

monochromatic

#171B04 #171B04 #181C04 #46520C #748713

Accessibility & contrast

On white

17.40

#181C04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#181C04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C04

17.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C04	#FFFFFF	#000000	##FFFFFF
##181C04	1.00	17.40	1.21	17.40
#FFFFFF	17.40	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1A02

Deuteranopia (green-blind)

#1E1A05

Tritanopia (blue-blind)

#1A1A17

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #181c04;
/* rgb */ color: rgb(24, 28, 4);
/* oklch */ color: oklch(21.6% 0.042 117.7);

Tailwind

colors: {
  custom: {
    50: '#545848',
    500: '#181c04',
    950: '#000000',
  },
}

SCSS

$custom: #181c04;
$custom-light: #545848;
$custom-dark: #000000;

JSON

{
  "hex": "#181c04",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 4
  },
  "hsl": {
    "h": 70,
    "s": 75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.21555,
    "c": 0.04206,
    "h": 117.7
  },
  "luminance": 0.01033
}

Semantic roles & 50–950 ramp

primary

#181C04

secondary

#281D5E

accent

#36F255

background

#F4F5F4

surface

#E7E9E6

border

#C3C5C2

text

#020300

muted

#787877

Preview Lab

Preview with #181C04

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

Preview Lab → · Contrast checker → · Palette generator →