#181A4C#181A4C

#181A4C is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.091 H 276.0°. Best body text is #FFFFFF at 16.27:1 contrast (WCAG AA passes).

Color values

HEX	#181A4C
RGB	rgb(24, 26, 76)
HSL	hsl(238, 52%, 20%)
HSV	hsv(238, 68%, 30%)
CMYK	cmyk(68.4%, 65.8%, 0%, 70.2%)
CIE-LAB	lab(12.32, 17.13, -31.33)
CIE-LCH	lch(12.32, 35.71, 298.67°)
OKLab	oklab(25.1% 0.0094 -0.0901)
OKLCH	oklch(25.1% 0.091 276)
XYZ	xyz(2.0502, 1.4546, 7.0088)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A4C #4C4A18

analogous

#18344C #181A4C #30184C

triadic

#181A4C #4C181A #1A4C18

tetradic

#181A4C #4C1834 #4C4A18 #184C30

square

#181A4C #4C1834 #4C4A18 #184C30

split-complementary

#181A4C #4C3018 #344C18

monochromatic

#070817 #090A1D #181A4C #272A7B #353AA9

Accessibility & contrast

On white

16.27

#181A4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#181A4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A4C

16.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A4C	#FFFFFF	#000000	##FFFFFF
##181A4C	1.00	16.27	1.29	16.27
#FFFFFF	16.27	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224E

Deuteranopia (green-blind)

#001E4B

Tritanopia (blue-blind)

#002630

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #181a4c;
/* rgb */ color: rgb(24, 26, 76);
/* oklch */ color: oklch(25.1% 0.091 276.0);

Tailwind

colors: {
  custom: {
    50: '#5c567e',
    500: '#181a4c',
    950: '#000000',
  },
}

SCSS

$custom: #181a4c;
$custom-light: #5c567e;
$custom-dark: #000000;

JSON

{
  "hex": "#181a4c",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 76
  },
  "hsl": {
    "h": 237.692,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25099,
    "c": 0.09061,
    "h": 276
  },
  "luminance": 0.01455
}

Semantic roles & 50–950 ramp

primary

#181A4C

secondary

#83803D

accent

#D64CDB

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #181A4C

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

Preview Lab → · Contrast checker → · Palette generator →