#181A41#181A41

#181A41 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.073 H 277.3°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#181A41
RGB	rgb(24, 26, 65)
HSL	hsl(237, 46%, 17%)
HSV	hsv(237, 63%, 25%)
CMYK	cmyk(63.1%, 60%, 0%, 74.5%)
CIE-LAB	lab(11.38, 12.75, -25.19)
CIE-LCH	lch(11.38, 28.24, 296.85°)
OKLab	oklab(24.1% 0.0092 -0.0721)
OKLCH	oklch(24.1% 0.073 277.3)
XYZ	xyz(1.6999, 1.3145, 5.1642)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A41 #413F18

analogous

#182F41 #181A41 #2A1841

triadic

#181A41 #41181A #1A4118

tetradic

#181A41 #41182F #413F18 #18412A

square

#181A41 #41182F #413F18 #18412A

split-complementary

#181A41 #412A18 #2F4118

monochromatic

#080916 #080916 #181A41 #292C6E #393E9A

Accessibility & contrast

On white

16.63

#181A41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#181A41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A41

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A41	#FFFFFF	#000000	##FFFFFF
##181A41	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#052042

Deuteranopia (green-blind)

#011D40

Tritanopia (blue-blind)

#04232A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181a41;
/* rgb */ color: rgb(24, 26, 65);
/* oklch */ color: oklch(24.1% 0.073 277.3);

Tailwind

colors: {
  custom: {
    50: '#595676',
    500: '#181a41',
    950: '#000000',
  },
}

SCSS

$custom: #181a41;
$custom-light: #595676;
$custom-dark: #000000;

JSON

{
  "hex": "#181a41",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 65
  },
  "hsl": {
    "h": 237.073,
    "s": 46.067,
    "l": 17.451
  },
  "oklch": {
    "l": 0.24102,
    "c": 0.07265,
    "h": 277.3
  },
  "luminance": 0.01315
}

Semantic roles & 50–950 ramp

primary

#181A41

secondary

#78753D

accent

#CF52D6

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #181A41

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

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