#182A72#182A72

#182A72 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.1% C 0.126 H 267.7°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#182A72
RGB	rgb(24, 42, 114)
HSL	hsl(228, 65%, 27%)
HSV	hsv(228, 79%, 45%)
CMYK	cmyk(78.9%, 63.2%, 0%, 55.3%)
CIE-LAB	lab(20.30, 20.87, -43.57)
CIE-LCH	lch(20.30, 48.31, 295.60°)
OKLab	oklab(32.09% -0.005 -0.1259)
OKLCH	oklch(32.09% 0.126 267.7)
XYZ	xyz(4.2409, 3.0646, 16.2843)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A72 #726018

analogous

#185772 #182A72 #331872

triadic

#182A72 #72182A #2A7218

tetradic

#182A72 #721857 #726018 #187233

square

#182A72 #721857 #726018 #187233

split-complementary

#182A72 #723318 #577218

monochromatic

#050919 #0D173F #182A72 #233DA5 #3151D4

Accessibility & contrast

On white

13.02

#182A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#182A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A72

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A72	#FFFFFF	#000000	##FFFFFF
##182A72	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003574

Deuteranopia (green-blind)

#002D71

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #182a72;
/* rgb */ color: rgb(24, 42, 114);
/* oklch */ color: oklch(32.1% 0.126 267.7);

Tailwind

colors: {
  custom: {
    50: '#64639b',
    500: '#182a72',
    950: '#000000',
  },
}

SCSS

$custom: #182a72;
$custom-light: #64639b;
$custom-dark: #000000;

JSON

{
  "hex": "#182a72",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 114
  },
  "hsl": {
    "h": 228,
    "s": 65.217,
    "l": 27.059
  },
  "oklch": {
    "l": 0.32092,
    "c": 0.12598,
    "h": 267.7
  },
  "luminance": 0.03065
}

Semantic roles & 50–950 ramp

primary

#182A72

secondary

#A7923E

accent

#C640E8

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #182A72

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

Preview Lab → · Contrast checker → · Palette generator →