#183386#183386

#183386 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.143 H 265.6°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#183386
RGB	rgb(24, 51, 134)
HSL	hsl(225, 70%, 31%)
HSV	hsv(225, 82%, 53%)
CMYK	cmyk(82.1%, 61.9%, 0%, 47.5%)
CIE-LAB	lab(24.58, 22.62, -49.26)
CIE-LCH	lch(24.58, 54.20, 294.67°)
OKLab	oklab(35.83% -0.0109 -0.1424)
OKLCH	oklch(35.83% 0.143 265.6)
XYZ	xyz(5.8621, 4.2824, 23.0673)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183386 #866B18

analogous

#186A86 #183386 #341886

triadic

#183386 #861833 #338618

tetradic

#183386 #86186A #866B18 #188634

square

#183386 #86186A #866B18 #188634

split-complementary

#183386 #863418 #6A8618

monochromatic

#050B1E #0F1F52 #183386 #2147BA #3C64DC

Accessibility & contrast

On white

11.31

#183386 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#183386 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183386

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183386	#FFFFFF	#000000	##FFFFFF
##183386	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004089

Deuteranopia (green-blind)

#003584

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183386;
/* rgb */ color: rgb(24, 51, 134);
/* oklch */ color: oklch(35.8% 0.143 265.6);

Tailwind

colors: {
  custom: {
    50: '#696aaa',
    500: '#183386',
    950: '#000000',
  },
}

SCSS

$custom: #183386;
$custom-light: #696aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#183386",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 134
  },
  "hsl": {
    "h": 225.273,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.35834,
    "c": 0.14284,
    "h": 265.6
  },
  "luminance": 0.04283
}

Semantic roles & 50–950 ramp

primary

#183386

secondary

#BA9C40

accent

#C13BEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183386

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

Preview Lab → · Contrast checker → · Palette generator →