#13183C#13183C

#13183C is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.069 H 273.7°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#13183C
RGB	rgb(19, 24, 60)
HSL	hsl(233, 52%, 15%)
HSV	hsv(233, 68%, 24%)
CMYK	cmyk(68.3%, 60%, 0%, 76.5%)
CIE-LAB	lab(9.94, 11.07, -23.99)
CIE-LCH	lch(9.94, 26.42, 294.77°)
OKLab	oklab(22.79% 0.0044 -0.0687)
OKLCH	oklch(22.79% 0.069 273.7)
XYZ	xyz(1.4105, 1.1179, 4.4155)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13183C #3C3713

analogous

#132C3C #13183C #22133C

triadic

#13183C #3C1318 #183C13

tetradic

#13183C #3C132C #3C3713 #133C22

square

#13183C #3C132C #3C3713 #133C22

split-complementary

#13183C #3C2213 #2C3C13

monochromatic

#070917 #070917 #13183C #222B6A #303D99

Accessibility & contrast

On white

17.16

#13183C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#13183C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13183C

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13183C	#FFFFFF	#000000	##FFFFFF
##13183C	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041D3D

Deuteranopia (green-blind)

#001A3B

Tritanopia (blue-blind)

#002027

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #13183c;
/* rgb */ color: rgb(19, 24, 60);
/* oklch */ color: oklch(22.8% 0.069 273.7);

Tailwind

colors: {
  custom: {
    50: '#565472',
    500: '#13183c',
    950: '#000000',
  },
}

SCSS

$custom: #13183c;
$custom-light: #565472;
$custom-dark: #000000;

JSON

{
  "hex": "#13183c",
  "rgb": {
    "r": 19,
    "g": 24,
    "b": 60
  },
  "hsl": {
    "h": 232.683,
    "s": 51.899,
    "l": 15.49
  },
  "oklch": {
    "l": 0.22785,
    "c": 0.06886,
    "h": 273.7
  },
  "luminance": 0.01118
}

Semantic roles & 50–950 ramp

primary

#13183C

secondary

#746D36

accent

#CA4CDB

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #13183C

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

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