#181C24#181C24

#181C24 is a very dark, near-neutral blue. Relative luminance 0.012; OKLCH L 22.6% C 0.017 H 264.2°. Best body text is #FFFFFF at 17.07:1 contrast (WCAG AA passes).

Color values

HEX	#181C24
RGB	rgb(24, 28, 36)
HSL	hsl(220, 20%, 12%)
HSV	hsv(220, 33%, 14%)
CMYK	cmyk(33.3%, 22.2%, 0%, 85.9%)
CIE-LAB	lab(10.20, 0.53, -6.08)
CIE-LCH	lch(10.20, 6.11, 274.94°)
OKLab	oklab(22.6% -0.0017 -0.0167)
OKLCH	oklch(22.6% 0.017 264.2)
XYZ	xyz(1.1103, 1.1520, 1.8326)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C24 #242018

analogous

#182224 #181C24 #1A1824

triadic

#181C24 #24181C #1C2418

tetradic

#181C24 #241822 #242018 #18241A

square

#181C24 #241822 #242018 #18241A

split-complementary

#181C24 #241A18 #222418

monochromatic

#0C0E12 #0C0E12 #181C24 #303949 #49556D

Accessibility & contrast

On white

17.07

#181C24 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#181C24 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C24

17.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C24	#FFFFFF	#000000	##FFFFFF
##181C24	1.00	17.07	1.23	17.07
#FFFFFF	17.07	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191C24

Deuteranopia (green-blind)

#181B24

Tritanopia (blue-blind)

#151E1F

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #181c24;
/* rgb */ color: rgb(24, 28, 36);
/* oklch */ color: oklch(22.6% 0.017 264.2);

Tailwind

colors: {
  custom: {
    50: '#55575e',
    500: '#181c24',
    950: '#000000',
  },
}

SCSS

$custom: #181c24;
$custom-light: #55575e;
$custom-dark: #000000;

JSON

{
  "hex": "#181c24",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 36
  },
  "hsl": {
    "h": 220,
    "s": 20,
    "l": 11.765
  },
  "oklch": {
    "l": 0.226,
    "c": 0.01675,
    "h": 264.2
  },
  "luminance": 0.01152
}

Semantic roles & 50–950 ramp

primary

#181C24

secondary

#574F41

accent

#A16BBD

background

#F4F5F5

surface

#E7E9E9

border

#C3C5C5

text

#030304

muted

#787879

Preview Lab

Preview with #181C24

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

Preview Lab → · Contrast checker → · Palette generator →