#182B74#182B74

#182B74 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.5% C 0.128 H 267.4°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#182B74
RGB	rgb(24, 43, 116)
HSL	hsl(228, 66%, 27%)
HSV	hsv(228, 79%, 45%)
CMYK	cmyk(79.3%, 62.9%, 0%, 54.5%)
CIE-LAB	lab(20.76, 20.97, -44.11)
CIE-LCH	lch(20.76, 48.84, 295.43°)
OKLab	oklab(32.49% -0.0057 -0.1274)
OKLCH	oklch(32.49% 0.128 267.4)
XYZ	xyz(4.3919, 3.1824, 16.9024)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B74 #746118

analogous

#185974 #182B74 #331874

triadic

#182B74 #74182B #2B7418

tetradic

#182B74 #741859 #746118 #187433

square

#182B74 #741859 #746118 #187433

split-complementary

#182B74 #743318 #597418

monochromatic

#050919 #0E1841 #182B74 #223EA7 #3253D5

Accessibility & contrast

On white

12.83

#182B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#182B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B74

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B74	#FFFFFF	#000000	##FFFFFF
##182B74	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003676

Deuteranopia (green-blind)

#002E73

Tritanopia (blue-blind)

#003E4B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #182b74;
/* rgb */ color: rgb(24, 43, 116);
/* oklch */ color: oklch(32.5% 0.128 267.4);

Tailwind

colors: {
  custom: {
    50: '#65649d',
    500: '#182b74',
    950: '#000000',
  },
}

SCSS

$custom: #182b74;
$custom-light: #65649d;
$custom-dark: #000000;

JSON

{
  "hex": "#182b74",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 116
  },
  "hsl": {
    "h": 227.609,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.32489,
    "c": 0.12757,
    "h": 267.4
  },
  "luminance": 0.03183
}

Semantic roles & 50–950 ramp

primary

#182B74

secondary

#A9933F

accent

#C63FE9

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #182B74

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

Preview Lab → · Contrast checker → · Palette generator →