#182A78#182A78

#182A78 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.7% C 0.135 H 267.9°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#182A78
RGB	rgb(24, 42, 120)
HSL	hsl(229, 67%, 28%)
HSV	hsv(229, 80%, 47%)
CMYK	cmyk(80%, 65%, 0%, 52.9%)
CIE-LAB	lab(20.85, 23.29, -46.52)
CIE-LCH	lch(20.85, 52.03, 296.60°)
OKLab	oklab(32.67% -0.005 -0.1345)
OKLCH	oklch(32.67% 0.135 267.9)
XYZ	xyz(4.5936, 3.2057, 18.1423)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A78 #786618

analogous

#185A78 #182A78 #361878

triadic

#182A78 #78182A #2A7818

tetradic

#182A78 #78185A #786618 #187836

square

#182A78 #78185A #786618 #187836

split-complementary

#182A78 #783618 #5A7818

monochromatic

#05091A #0E1845 #182A78 #223CAB #3452D6

Accessibility & contrast

On white

12.80

#182A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#182A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A78

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A78	#FFFFFF	#000000	##FFFFFF
##182A78	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377B

Deuteranopia (green-blind)

#002E77

Tritanopia (blue-blind)

#003E4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #182a78;
/* rgb */ color: rgb(24, 42, 120);
/* oklch */ color: oklch(32.7% 0.135 267.9);

Tailwind

colors: {
  custom: {
    50: '#6663a0',
    500: '#182a78',
    950: '#000000',
  },
}

SCSS

$custom: #182a78;
$custom-light: #6663a0;
$custom-dark: #000000;

JSON

{
  "hex": "#182a78",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 120
  },
  "hsl": {
    "h": 228.75,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.32669,
    "c": 0.13461,
    "h": 267.9
  },
  "luminance": 0.03206
}

Semantic roles & 50–950 ramp

primary

#182A78

secondary

#AD983F

accent

#C93EEA

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #182A78

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

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