#181C49#181C49

#181C49 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.083 H 275.0°. Best body text is #FFFFFF at 16.14:1 contrast (WCAG AA passes).

Color values

HEX	#181C49
RGB	rgb(24, 28, 73)
HSL	hsl(235, 51%, 19%)
HSV	hsv(235, 67%, 29%)
CMYK	cmyk(67.1%, 61.6%, 0%, 71.4%)
CIE-LAB	lab(12.64, 14.44, -28.73)
CIE-LCH	lch(12.64, 32.15, 296.68°)
OKLab	oklab(25.26% 0.0072 -0.0824)
OKLCH	oklch(25.26% 0.083 275)
XYZ	xyz(1.9941, 1.5056, 6.4876)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.37

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C49 #494518

analogous

#183549 #181C49 #2D1849

triadic

#181C49 #49181C #1C4918

tetradic

#181C49 #491835 #494518 #18492D

square

#181C49 #491835 #494518 #18492D

split-complementary

#181C49 #492D18 #354918

monochromatic

#080917 #090A1B #181C49 #272E77 #363FA5

Accessibility & contrast

On white

16.14

#181C49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#181C49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C49

16.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C49	#FFFFFF	#000000	##FFFFFF
##181C49	1.00	16.14	1.30	16.14
#FFFFFF	16.14	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234B

Deuteranopia (green-blind)

#001F48

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181c49;
/* rgb */ color: rgb(24, 28, 73);
/* oklch */ color: oklch(25.3% 0.083 275.0);

Tailwind

colors: {
  custom: {
    50: '#5b577c',
    500: '#181c49',
    950: '#000000',
  },
}

SCSS

$custom: #181c49;
$custom-light: #5b577c;
$custom-dark: #000000;

JSON

{
  "hex": "#181c49",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 73
  },
  "hsl": {
    "h": 235.102,
    "s": 50.515,
    "l": 19.02
  },
  "oklch": {
    "l": 0.2526,
    "c": 0.08276,
    "h": 275
  },
  "luminance": 0.01506
}

Semantic roles & 50–950 ramp

primary

#181C49

secondary

#807A3D

accent

#CF4EDA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #181C49

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

Preview Lab → · Contrast checker → · Palette generator →