#18182A#18182A

#18182A is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.9% C 0.035 H 283.1°. Best body text is #FFFFFF at 17.46:1 contrast (WCAG AA passes).

Color values

HEX	#18182A
RGB	rgb(24, 24, 42)
HSL	hsl(240, 27%, 13%)
HSV	hsv(240, 43%, 16%)
CMYK	cmyk(42.9%, 42.9%, 0%, 83.5%)
CIE-LAB	lab(9.11, 5.57, -12.20)
CIE-LCH	lch(9.11, 13.42, 294.55°)
OKLab	oklab(21.86% 0.0079 -0.0341)
OKLCH	oklch(21.86% 0.035 283.1)
XYZ	xyz(1.1211, 1.0146, 2.3268)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18182A #2A2A18

analogous

#18212A #18182A #21182A

triadic

#18182A #2A1818 #182A18

tetradic

#18182A #2A1821 #2A2A18 #182A21

square

#18182A #2A1821 #2A2A18 #182A21

split-complementary

#18182A #2A2118 #212A18

monochromatic

#0B0B13 #0B0B13 #18182A #2E2E51 #454578

Accessibility & contrast

On white

17.46

#18182A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#18182A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18182A

17.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18182A	#FFFFFF	#000000	##FFFFFF
##18182A	1.00	17.46	1.20	17.46
#FFFFFF	17.46	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121A2B

Deuteranopia (green-blind)

#12192A

Tritanopia (blue-blind)

#131B1F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #18182a;
/* rgb */ color: rgb(24, 24, 42);
/* oklch */ color: oklch(21.9% 0.035 283.1);

Tailwind

colors: {
  custom: {
    50: '#555463',
    500: '#18182a',
    950: '#000000',
  },
}

SCSS

$custom: #18182a;
$custom-light: #555463;
$custom-dark: #000000;

JSON

{
  "hex": "#18182a",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 42
  },
  "hsl": {
    "h": 240,
    "s": 27.273,
    "l": 12.941
  },
  "oklch": {
    "l": 0.21861,
    "c": 0.03499,
    "h": 283.1
  },
  "luminance": 0.01015
}

Semantic roles & 50–950 ramp

primary

#18182A

secondary

#5E5E40

accent

#C464C4

background

#F5F4F5

surface

#E9E7EA

border

#C5C3C6

text

#030205

muted

#787879

Preview Lab

Preview with #18182A

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

Preview Lab → · Contrast checker → · Palette generator →