#181A49#181A49

#181A49 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.086 H 276.3°. Best body text is #FFFFFF at 16.37:1 contrast (WCAG AA passes).

Color values

HEX	#181A49
RGB	rgb(24, 26, 73)
HSL	hsl(238, 51%, 19%)
HSV	hsv(238, 67%, 29%)
CMYK	cmyk(67.1%, 64.4%, 0%, 71.4%)
CIE-LAB	lab(12.05, 15.93, -29.69)
CIE-LCH	lch(12.05, 33.70, 298.22°)
OKLab	oklab(24.82% 0.0095 -0.0853)
OKLCH	oklch(24.82% 0.086 276.3)
XYZ	xyz(1.9483, 1.4139, 6.4723)
Luminance	0.0141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A49 #494718

analogous

#183349 #181A49 #2F1849

triadic

#181A49 #49181A #1A4918

tetradic

#181A49 #491833 #494718 #18492F

square

#181A49 #491833 #494718 #18492F

split-complementary

#181A49 #492F18 #334918

monochromatic

#080817 #090A1B #181A49 #272A77 #363BA5

Accessibility & contrast

On white

16.37

#181A49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#181A49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A49

16.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A49	#FFFFFF	#000000	##FFFFFF
##181A49	1.00	16.37	1.28	16.37
#FFFFFF	16.37	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224B

Deuteranopia (green-blind)

#001E48

Tritanopia (blue-blind)

#00252E

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #181a49;
/* rgb */ color: rgb(24, 26, 73);
/* oklch */ color: oklch(24.8% 0.086 276.3);

Tailwind

colors: {
  custom: {
    50: '#5b567c',
    500: '#181a49',
    950: '#000000',
  },
}

SCSS

$custom: #181a49;
$custom-light: #5b567c;
$custom-dark: #000000;

JSON

{
  "hex": "#181a49",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 73
  },
  "hsl": {
    "h": 237.551,
    "s": 50.515,
    "l": 19.02
  },
  "oklch": {
    "l": 0.24818,
    "c": 0.08582,
    "h": 276.3
  },
  "luminance": 0.01414
}

Semantic roles & 50–950 ramp

primary

#181A49

secondary

#807D3D

accent

#D44EDA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #181A49

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

Preview Lab → · Contrast checker → · Palette generator →