#181A4E#181A4E

#181A4E is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.094 H 275.7°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#181A4E
RGB	rgb(24, 26, 78)
HSL	hsl(238, 53%, 20%)
HSV	hsv(238, 69%, 31%)
CMYK	cmyk(69.2%, 66.7%, 0%, 69.4%)
CIE-LAB	lab(12.50, 17.92, -32.41)
CIE-LCH	lch(12.50, 37.04, 298.94°)
OKLab	oklab(25.29% 0.0094 -0.0933)
OKLCH	oklch(25.29% 0.094 275.7)
XYZ	xyz(2.1208, 1.4829, 7.3807)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A4E #4E4C18

analogous

#18354E #181A4E #31184E

triadic

#181A4E #4E181A #1A4E18

tetradic

#181A4E #4E1835 #4E4C18 #184E31

square

#181A4E #4E1835 #4E4C18 #184E31

split-complementary

#181A4E #4E3118 #354E18

monochromatic

#070817 #0A0A1F #181A4E #262A7D #3539AC

Accessibility & contrast

On white

16.20

#181A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#181A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A4E

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A4E	#FFFFFF	#000000	##FFFFFF
##181A4E	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002350

Deuteranopia (green-blind)

#001E4D

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181a4e;
/* rgb */ color: rgb(24, 26, 78);
/* oklch */ color: oklch(25.3% 0.094 275.7);

Tailwind

colors: {
  custom: {
    50: '#5c5680',
    500: '#181a4e',
    950: '#000000',
  },
}

SCSS

$custom: #181a4e;
$custom-light: #5c5680;
$custom-dark: #000000;

JSON

{
  "hex": "#181a4e",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 78
  },
  "hsl": {
    "h": 237.778,
    "s": 52.941,
    "l": 20
  },
  "oklch": {
    "l": 0.25291,
    "c": 0.09377,
    "h": 275.7
  },
  "luminance": 0.01483
}

Semantic roles & 50–950 ramp

primary

#181A4E

secondary

#85823D

accent

#D74BDC

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #181A4E

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

Preview Lab → · Contrast checker → · Palette generator →