#182C81#182C81

#182C81 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.9% C 0.145 H 267.4°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#182C81
RGB	rgb(24, 44, 129)
HSL	hsl(229, 69%, 30%)
HSV	hsv(229, 81%, 51%)
CMYK	cmyk(81.4%, 65.9%, 0%, 49.4%)
CIE-LAB	lab(22.23, 25.49, -49.97)
CIE-LCH	lch(22.23, 56.09, 297.03°)
OKLab	oklab(33.95% -0.0065 -0.1446)
OKLCH	oklch(33.95% 0.145 267.4)
XYZ	xyz(5.2384, 3.5799, 21.1795)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182C81 #816D18

analogous

#186181 #182C81 #381881

triadic

#182C81 #81182C #2C8118

tetradic

#182C81 #811861 #816D18 #188138

square

#182C81 #811861 #816D18 #188138

split-complementary

#182C81 #813818 #618118

monochromatic

#05091A #0E1A4D #182C81 #223EB5 #3958DA

Accessibility & contrast

On white

12.24

#182C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#182C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182C81

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182C81	#FFFFFF	#000000	##FFFFFF
##182C81	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A84

Deuteranopia (green-blind)

#00307F

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #182c81;
/* rgb */ color: rgb(24, 44, 129);
/* oklch */ color: oklch(33.9% 0.145 267.4);

Tailwind

colors: {
  custom: {
    50: '#6865a6',
    500: '#182c81',
    950: '#000000',
  },
}

SCSS

$custom: #182c81;
$custom-light: #6865a6;
$custom-dark: #000000;

JSON

{
  "hex": "#182c81",
  "rgb": {
    "r": 24,
    "g": 44,
    "b": 129
  },
  "hsl": {
    "h": 228.571,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.33948,
    "c": 0.14474,
    "h": 267.4
  },
  "luminance": 0.03581
}

Semantic roles & 50–950 ramp

primary

#182C81

secondary

#B59F40

accent

#CA3CEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #182C81

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

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