#181C01#181C01

#181C01 is a very dark, muted yellow. Relative luminance 0.010; OKLCH L 21.5% C 0.048 H 117.1°. Best body text is #FFFFFF at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#181C01
RGB	rgb(24, 28, 1)
HSL	hsl(69, 93%, 6%)
HSV	hsv(69, 96%, 11%)
CMYK	cmyk(14.3%, 0%, 96.4%, 89%)
CIE-LAB	lab(9.21, -7.05, 13.24)
CIE-LCH	lch(9.21, 15.00, 118.03°)
OKLab	oklab(21.49% -0.0216 0.0423)
OKLCH	oklch(21.49% 0.048 117.1)
XYZ	xyz(0.7974, 1.0269, 0.1849)
Luminance	0.0103 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C01 #05011C

analogous

#1C1201 #181C01 #0A1C01

triadic

#181C01 #01181C #1C0118

tetradic

#181C01 #011C12 #05011C #1C010A

square

#181C01 #011C12 #05011C #1C010A

split-complementary

#181C01 #010A1C #12011C

monochromatic

#191E01 #191E01 #191E01 #4B5703 #7D9205

Accessibility & contrast

On white

17.42

#181C01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#181C01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C01

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C01	#FFFFFF	#000000	##FFFFFF
##181C01	1.00	17.42	1.21	17.42
#FFFFFF	17.42	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1A00

Deuteranopia (green-blind)

#1E1A02

Tritanopia (blue-blind)

#1A1A16

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #181c01;
/* rgb */ color: rgb(24, 28, 1);
/* oklch */ color: oklch(21.5% 0.048 117.1);

Tailwind

colors: {
  custom: {
    50: '#545847',
    500: '#181c01',
    950: '#000000',
  },
}

SCSS

$custom: #181c01;
$custom-light: #545847;
$custom-dark: #000000;

JSON

{
  "hex": "#181c01",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 1
  },
  "hsl": {
    "h": 68.889,
    "s": 93.103,
    "l": 5.686
  },
  "oklch": {
    "l": 0.21494,
    "c": 0.04752,
    "h": 117.1
  },
  "luminance": 0.01027
}

Semantic roles & 50–950 ramp

primary

#181C01

secondary

#211564

accent

#29FF49

background

#F4F5F3

surface

#E7E9E5

border

#C3C5C1

text

#020300

muted

#787877

Preview Lab

Preview with #181C01

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

Preview Lab → · Contrast checker → · Palette generator →