#182A73#182A73

#182A73 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.2% C 0.127 H 267.8°. Best body text is #FFFFFF at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#182A73
RGB	rgb(24, 42, 115)
HSL	hsl(228, 65%, 27%)
HSV	hsv(228, 79%, 45%)
CMYK	cmyk(79.1%, 63.5%, 0%, 54.9%)
CIE-LAB	lab(20.39, 21.28, -44.07)
CIE-LCH	lch(20.39, 48.94, 295.77°)
OKLab	oklab(32.19% -0.005 -0.1273)
OKLCH	oklch(32.19% 0.127 267.8)
XYZ	xyz(4.2981, 3.0875, 16.5857)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A73 #736118

analogous

#185873 #182A73 #341873

triadic

#182A73 #73182A #2A7318

tetradic

#182A73 #731858 #736118 #187334

square

#182A73 #731858 #736118 #187334

split-complementary

#182A73 #733418 #587318

monochromatic

#050919 #0D1840 #182A73 #233CA6 #3152D4

Accessibility & contrast

On white

12.98

#182A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#182A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A73

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A73	#FFFFFF	#000000	##FFFFFF
##182A73	1.00	12.98	1.62	12.98
#FFFFFF	12.98	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003675

Deuteranopia (green-blind)

#002D72

Tritanopia (blue-blind)

#003D4A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #182a73;
/* rgb */ color: rgb(24, 42, 115);
/* oklch */ color: oklch(32.2% 0.127 267.8);

Tailwind

colors: {
  custom: {
    50: '#65639c',
    500: '#182a73',
    950: '#000000',
  },
}

SCSS

$custom: #182a73;
$custom-light: #65639c;
$custom-dark: #000000;

JSON

{
  "hex": "#182a73",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 115
  },
  "hsl": {
    "h": 228.132,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.32187,
    "c": 0.12744,
    "h": 267.8
  },
  "luminance": 0.03088
}

Semantic roles & 50–950 ramp

primary

#182A73

secondary

#A8933F

accent

#C73FE8

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #182A73

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

Preview Lab → · Contrast checker → · Palette generator →