#183384#183384

#183384 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.140 H 265.5°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#183384
RGB	rgb(24, 51, 132)
HSL	hsl(225, 69%, 31%)
HSV	hsv(225, 82%, 52%)
CMYK	cmyk(81.8%, 61.4%, 0%, 48.2%)
CIE-LAB	lab(24.41, 21.81, -48.29)
CIE-LCH	lch(24.41, 52.99, 294.31°)
OKLab	oklab(35.65% -0.011 -0.1396)
OKLCH	oklch(35.65% 0.14 265.5)
XYZ	xyz(5.7239, 4.2271, 22.3396)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183384 #846918

analogous

#186984 #183384 #331884

triadic

#183384 #841833 #338418

tetradic

#183384 #841869 #846918 #188433

square

#183384 #841869 #846918 #188433

split-complementary

#183384 #843318 #698418

monochromatic

#050B1C #0F1F50 #183384 #2147B8 #3B63DB

Accessibility & contrast

On white

11.38

#183384 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#183384 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183384

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183384	#FFFFFF	#000000	##FFFFFF
##183384	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F87

Deuteranopia (green-blind)

#003582

Tritanopia (blue-blind)

#004856

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183384;
/* rgb */ color: rgb(24, 51, 132);
/* oklch */ color: oklch(35.6% 0.140 265.5);

Tailwind

colors: {
  custom: {
    50: '#686aa9',
    500: '#183384',
    950: '#000000',
  },
}

SCSS

$custom: #183384;
$custom-light: #686aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#183384",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 132
  },
  "hsl": {
    "h": 225,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35648,
    "c": 0.14002,
    "h": 265.5
  },
  "luminance": 0.04228
}

Semantic roles & 50–950 ramp

primary

#183384

secondary

#B89A40

accent

#C03CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183384

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

Preview Lab → · Contrast checker → · Palette generator →