#183385#183385

#183385 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.141 H 265.6°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#183385
RGB	rgb(24, 51, 133)
HSL	hsl(225, 69%, 31%)
HSV	hsv(225, 82%, 52%)
CMYK	cmyk(82%, 61.7%, 0%, 47.8%)
CIE-LAB	lab(24.50, 22.22, -48.77)
CIE-LCH	lch(24.50, 53.59, 294.49°)
OKLab	oklab(35.74% -0.0109 -0.141)
OKLCH	oklch(35.74% 0.141 265.6)
XYZ	xyz(5.7927, 4.2546, 22.7017)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183385 #856A18

analogous

#186985 #183385 #341885

triadic

#183385 #851833 #338518

tetradic

#183385 #851869 #856A18 #188534

square

#183385 #851869 #856A18 #188534

split-complementary

#183385 #853418 #698518

monochromatic

#050B1D #0F1F51 #183385 #2147B9 #3C63DC

Accessibility & contrast

On white

11.35

#183385 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#183385 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183385

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183385	#FFFFFF	#000000	##FFFFFF
##183385	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F88

Deuteranopia (green-blind)

#003583

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183385;
/* rgb */ color: rgb(24, 51, 133);
/* oklch */ color: oklch(35.7% 0.141 265.6);

Tailwind

colors: {
  custom: {
    50: '#696aa9',
    500: '#183385',
    950: '#000000',
  },
}

SCSS

$custom: #183385;
$custom-light: #696aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#183385",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 133
  },
  "hsl": {
    "h": 225.138,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.35741,
    "c": 0.14142,
    "h": 265.6
  },
  "luminance": 0.04255
}

Semantic roles & 50–950 ramp

primary

#183385

secondary

#B99B40

accent

#C03CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183385

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

Preview Lab → · Contrast checker → · Palette generator →