#181E4E#181E4E

#181E4E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.2% C 0.088 H 273.3°. Best body text is #FFFFFF at 15.74:1 contrast (WCAG AA passes).

Color values

HEX	#181E4E
RGB	rgb(24, 30, 78)
HSL	hsl(233, 53%, 20%)
HSV	hsv(233, 69%, 31%)
CMYK	cmyk(69.2%, 61.5%, 0%, 69.4%)
CIE-LAB	lab(13.67, 14.96, -30.52)
CIE-LCH	lch(13.67, 33.99, 296.12°)
OKLab	oklab(26.16% 0.0051 -0.0877)
OKLCH	oklch(26.16% 0.088 273.3)
XYZ	xyz(2.2157, 1.6726, 7.4123)
Luminance	0.0167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.99

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E4E #4E4818

analogous

#18394E #181E4E #2D184E

triadic

#181E4E #4E181E #1E4E18

tetradic

#181E4E #4E1839 #4E4818 #184E2D

square

#181E4E #4E1839 #4E4818 #184E2D

split-complementary

#181E4E #4E2D18 #394E18

monochromatic

#070917 #0A0C1F #181E4E #26307D #3542AC

Accessibility & contrast

On white

15.74

#181E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#181E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E4E

15.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E4E	#FFFFFF	#000000	##FFFFFF
##181E4E	1.00	15.74	1.33	15.74
#FFFFFF	15.74	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002550

Deuteranopia (green-blind)

#00214D

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #181e4e;
/* rgb */ color: rgb(24, 30, 78);
/* oklch */ color: oklch(26.2% 0.088 273.3);

Tailwind

colors: {
  custom: {
    50: '#5c5980',
    500: '#181e4e',
    950: '#000000',
  },
}

SCSS

$custom: #181e4e;
$custom-light: #5c5980;
$custom-dark: #000000;

JSON

{
  "hex": "#181e4e",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 78
  },
  "hsl": {
    "h": 233.333,
    "s": 52.941,
    "l": 20
  },
  "oklch": {
    "l": 0.26157,
    "c": 0.08783,
    "h": 273.3
  },
  "luminance": 0.01673
}

Semantic roles & 50–950 ramp

primary

#181E4E

secondary

#857D3D

accent

#CC4BDC

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #181E4E

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

Preview Lab → · Contrast checker → · Palette generator →