#182A8F#182A8F

#182A8F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.0% C 0.166 H 267.8°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#182A8F
RGB	rgb(24, 42, 143)
HSL	hsl(231, 71%, 33%)
HSV	hsv(231, 83%, 56%)
CMYK	cmyk(83.2%, 70.6%, 0%, 43.9%)
CIE-LAB	lab(23.11, 32.27, -57.28)
CIE-LCH	lch(23.11, 65.74, 299.40°)
OKLab	oklab(35.01% -0.0063 -0.1659)
OKLCH	oklch(35.01% 0.166 267.8)
XYZ	xyz(6.1609, 3.8326, 26.3963)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A8F #8F7D18

analogous

#18668F #182A8F #41188F

triadic

#182A8F #8F182A #2A8F18

tetradic

#182A8F #8F1866 #8F7D18 #188F41

square

#182A8F #8F1866 #8F7D18 #188F41

split-complementary

#182A8F #8F4118 #668F18

monochromatic

#060B26 #0F1B5B #182A8F #2139C3 #425ADF

Accessibility & contrast

On white

11.89

#182A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#182A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A8F

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A8F	#FFFFFF	#000000	##FFFFFF
##182A8F	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#00318D

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #182a8f;
/* rgb */ color: rgb(24, 42, 143);
/* oklch */ color: oklch(35.0% 0.166 267.8);

Tailwind

colors: {
  custom: {
    50: '#6c64b1',
    500: '#182a8f',
    950: '#000000',
  },
}

SCSS

$custom: #182a8f;
$custom-light: #6c64b1;
$custom-dark: #000000;

JSON

{
  "hex": "#182a8f",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 143
  },
  "hsl": {
    "h": 230.924,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35012,
    "c": 0.16607,
    "h": 267.8
  },
  "luminance": 0.03833
}

Semantic roles & 50–950 ramp

primary

#182A8F

secondary

#C0AD43

accent

#D33AEE

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #182A8F

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

Preview Lab → · Contrast checker → · Palette generator →