#181C47#181C47

#181C47 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.079 H 275.1°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#181C47
RGB	rgb(24, 28, 71)
HSL	hsl(235, 49%, 19%)
HSV	hsv(235, 66%, 28%)
CMYK	cmyk(66.2%, 60.6%, 0%, 72.2%)
CIE-LAB	lab(12.48, 13.64, -27.61)
CIE-LCH	lch(12.48, 30.80, 296.28°)
OKLab	oklab(25.08% 0.0071 -0.0792)
OKLCH	oklch(25.08% 0.079 275.1)
XYZ	xyz(1.9289, 1.4795, 6.1439)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.38

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C47 #474318

analogous

#183347 #181C47 #2B1847

triadic

#181C47 #47181C #1C4718

tetradic

#181C47 #471833 #474318 #18472B

square

#181C47 #471833 #474318 #18472B

split-complementary

#181C47 #472B18 #334718

monochromatic

#080917 #090A19 #181C47 #272E75 #3740A2

Accessibility & contrast

On white

16.20

#181C47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#181C47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C47

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C47	#FFFFFF	#000000	##FFFFFF
##181C47	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)

#022348

Deuteranopia (green-blind)

#001F46

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #181c47;
/* rgb */ color: rgb(24, 28, 71);
/* oklch */ color: oklch(25.1% 0.079 275.1);

Tailwind

colors: {
  custom: {
    50: '#5a577a',
    500: '#181c47',
    950: '#000000',
  },
}

SCSS

$custom: #181c47;
$custom-light: #5a577a;
$custom-dark: #000000;

JSON

{
  "hex": "#181c47",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 71
  },
  "hsl": {
    "h": 234.894,
    "s": 49.474,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25082,
    "c": 0.07948,
    "h": 275.1
  },
  "luminance": 0.0148
}

Semantic roles & 50–950 ramp

primary

#181C47

secondary

#7E783D

accent

#CD4FD9

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #181C47

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

Preview Lab → · Contrast checker → · Palette generator →