#182D8D#182D8D

#182D8D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.3% C 0.160 H 267.3°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#182D8D
RGB	rgb(24, 45, 141)
HSL	hsl(229, 71%, 32%)
HSV	hsv(229, 83%, 55%)
CMYK	cmyk(83%, 68.1%, 0%, 44.7%)
CIE-LAB	lab(23.65, 29.51, -55.15)
CIE-LCH	lch(23.65, 62.55, 298.16°)
OKLab	oklab(35.34% -0.0076 -0.1597)
OKLCH	oklch(35.34% 0.16 267.3)
XYZ	xyz(6.1211, 3.9933, 25.6423)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D8D #8D7818

analogous

#18678D #182D8D #3E188D

triadic

#182D8D #8D182D #2D8D18

tetradic

#182D8D #8D1867 #8D7818 #188D3E

square

#182D8D #8D1867 #8D7818 #188D3E

split-complementary

#182D8D #8D3E18 #678D18

monochromatic

#060C24 #0F1C59 #182D8D #213EC1 #415DDF

Accessibility & contrast

On white

11.67

#182D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#182D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D8D

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D8D	#FFFFFF	#000000	##FFFFFF
##182D8D	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00338B

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #182d8d;
/* rgb */ color: rgb(24, 45, 141);
/* oklch */ color: oklch(35.3% 0.160 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c66af',
    500: '#182d8d',
    950: '#000000',
  },
}

SCSS

$custom: #182d8d;
$custom-light: #6c66af;
$custom-dark: #000000;

JSON

{
  "hex": "#182d8d",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 141
  },
  "hsl": {
    "h": 229.231,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.35344,
    "c": 0.15991,
    "h": 267.3
  },
  "luminance": 0.03994
}

Semantic roles & 50–950 ramp

primary

#182D8D

secondary

#BFA942

accent

#CD3AEE

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #182D8D

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

Preview Lab → · Contrast checker → · Palette generator →