#181A2C#181A2C

#181A2C is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.5% C 0.035 H 278.3°. Best body text is #FFFFFF at 17.17:1 contrast (WCAG AA passes).

Color values

HEX	#181A2C
RGB	rgb(24, 26, 44)
HSL	hsl(234, 29%, 13%)
HSV	hsv(234, 45%, 17%)
CMYK	cmyk(45.5%, 40.9%, 0%, 82.7%)
CIE-LAB	lab(9.91, 4.75, -12.43)
CIE-LCH	lch(9.91, 13.30, 290.92°)
OKLab	oklab(22.52% 0.0051 -0.0347)
OKLCH	oklch(22.52% 0.035 278.3)
XYZ	xyz(1.2006, 1.1148, 2.5343)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A2C #2C2A18

analogous

#18242C #181A2C #20182C

triadic

#181A2C #2C181A #1A2C18

tetradic

#181A2C #2C1824 #2C2A18 #182C20

square

#181A2C #2C1824 #2C2A18 #182C20

split-complementary

#181A2C #2C2018 #242C18

monochromatic

#0B0C14 #0B0C14 #181A2C #2E3154 #43497B

Accessibility & contrast

On white

17.17

#181A2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#181A2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A2C

17.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A2C	#FFFFFF	#000000	##FFFFFF
##181A2C	1.00	17.17	1.22	17.17
#FFFFFF	17.17	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141C2D

Deuteranopia (green-blind)

#131B2C

Tritanopia (blue-blind)

#121D21

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #181a2c;
/* rgb */ color: rgb(24, 26, 44);
/* oklch */ color: oklch(22.5% 0.035 278.3);

Tailwind

colors: {
  custom: {
    50: '#555665',
    500: '#181a2c',
    950: '#000000',
  },
}

SCSS

$custom: #181a2c;
$custom-light: #555665;
$custom-dark: #000000;

JSON

{
  "hex": "#181a2c",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 44
  },
  "hsl": {
    "h": 234,
    "s": 29.412,
    "l": 13.333
  },
  "oklch": {
    "l": 0.22516,
    "c": 0.03509,
    "h": 278.3
  },
  "luminance": 0.01115
}

Semantic roles & 50–950 ramp

primary

#181A2C

secondary

#605D3F

accent

#BC62C6

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030305

muted

#78787A

Preview Lab

Preview with #181A2C

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

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