#182D78#182D78

#182D78 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.3% C 0.131 H 266.9°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#182D78
RGB	rgb(24, 45, 120)
HSL	hsl(227, 67%, 28%)
HSV	hsv(227, 80%, 47%)
CMYK	cmyk(80%, 62.5%, 0%, 52.9%)
CIE-LAB	lab(21.68, 21.18, -45.17)
CIE-LCH	lch(21.68, 49.89, 295.12°)
OKLab	oklab(33.28% -0.0071 -0.1305)
OKLCH	oklch(33.28% 0.131 266.9)
XYZ	xyz(4.7041, 3.4265, 18.1791)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D78 #786318

analogous

#185D78 #182D78 #331878

triadic

#182D78 #78182D #2D7818

tetradic

#182D78 #78185D #786318 #187833

square

#182D78 #78185D #786318 #187833

split-complementary

#182D78 #783318 #5D7818

monochromatic

#050A1A #0E1A45 #182D78 #2240AB #3458D6

Accessibility & contrast

On white

12.46

#182D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#182D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D78

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D78	#FFFFFF	#000000	##FFFFFF
##182D78	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397A

Deuteranopia (green-blind)

#003077

Tritanopia (blue-blind)

#00404E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #182d78;
/* rgb */ color: rgb(24, 45, 120);
/* oklch */ color: oklch(33.3% 0.131 266.9);

Tailwind

colors: {
  custom: {
    50: '#6665a0',
    500: '#182d78',
    950: '#000000',
  },
}

SCSS

$custom: #182d78;
$custom-light: #6665a0;
$custom-dark: #000000;

JSON

{
  "hex": "#182d78",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 120
  },
  "hsl": {
    "h": 226.875,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33282,
    "c": 0.13071,
    "h": 266.9
  },
  "luminance": 0.03427
}

Semantic roles & 50–950 ramp

primary

#182D78

secondary

#AD953F

accent

#C43EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050F

muted

#7A7A7E

Preview Lab

Preview with #182D78

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

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