#182E81#182E81

#182E81 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.3% C 0.142 H 266.9°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#182E81
RGB	rgb(24, 46, 129)
HSL	hsl(227, 69%, 30%)
HSV	hsv(227, 81%, 51%)
CMYK	cmyk(81.4%, 64.3%, 0%, 49.4%)
CIE-LAB	lab(22.77, 24.10, -49.09)
CIE-LCH	lch(22.77, 54.69, 296.15°)
OKLab	oklab(34.34% -0.0077 -0.142)
OKLCH	oklch(34.34% 0.142 266.9)
XYZ	xyz(5.3147, 3.7325, 21.2050)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182E81 #816B18

analogous

#186281 #182E81 #371881

triadic

#182E81 #81182E #2E8118

tetradic

#182E81 #811862 #816B18 #188137

square

#182E81 #811862 #816B18 #188137

split-complementary

#182E81 #813718 #628118

monochromatic

#05091A #0E1C4D #182E81 #2240B5 #395BDA

Accessibility & contrast

On white

12.02

#182E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#182E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182E81

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182E81	#FFFFFF	#000000	##FFFFFF
##182E81	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B84

Deuteranopia (green-blind)

#00327F

Tritanopia (blue-blind)

#004453

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #182e81;
/* rgb */ color: rgb(24, 46, 129);
/* oklch */ color: oklch(34.3% 0.142 266.9);

Tailwind

colors: {
  custom: {
    50: '#6866a6',
    500: '#182e81',
    950: '#000000',
  },
}

SCSS

$custom: #182e81;
$custom-light: #6866a6;
$custom-dark: #000000;

JSON

{
  "hex": "#182e81",
  "rgb": {
    "r": 24,
    "g": 46,
    "b": 129
  },
  "hsl": {
    "h": 227.429,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.34344,
    "c": 0.14221,
    "h": 266.9
  },
  "luminance": 0.03733
}

Semantic roles & 50–950 ramp

primary

#182E81

secondary

#B59D40

accent

#C73CEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #182E81

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

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