#182D8E#182D8E

#182D8E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.4% C 0.161 H 267.3°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#182D8E
RGB	rgb(24, 45, 142)
HSL	hsl(229, 71%, 33%)
HSV	hsv(229, 83%, 56%)
CMYK	cmyk(83.1%, 68.3%, 0%, 44.3%)
CIE-LAB	lab(23.75, 29.90, -55.61)
CIE-LCH	lch(23.75, 63.14, 298.27°)
OKLab	oklab(35.45% -0.0076 -0.1611)
OKLCH	oklch(35.45% 0.161 267.3)
XYZ	xyz(6.1959, 4.0232, 26.0360)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D8E #8E7918

analogous

#18688E #182D8E #3E188E

triadic

#182D8E #8E182D #2D8E18

tetradic

#182D8E #8E1868 #8E7918 #188E3E

square

#182D8E #8E1868 #8E7918 #188E3E

split-complementary

#182D8E #8E3E18 #688E18

monochromatic

#060C25 #0F1C5A #182D8E #213EC2 #415DDF

Accessibility & contrast

On white

11.64

#182D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#182D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D8E

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D8E	#FFFFFF	#000000	##FFFFFF
##182D8E	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E91

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #182d8e;
/* rgb */ color: rgb(24, 45, 142);
/* oklch */ color: oklch(35.4% 0.161 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c66b0',
    500: '#182d8e',
    950: '#000000',
  },
}

SCSS

$custom: #182d8e;
$custom-light: #6c66b0;
$custom-dark: #000000;

JSON

{
  "hex": "#182d8e",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 142
  },
  "hsl": {
    "h": 229.322,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35446,
    "c": 0.16125,
    "h": 267.3
  },
  "luminance": 0.04024
}

Semantic roles & 50–950 ramp

primary

#182D8E

secondary

#C0A942

accent

#CE3AEE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #182D8E

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

Preview Lab → · Contrast checker → · Palette generator →