#13183E#13183E

#13183E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.0% C 0.072 H 273.6°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#13183E
RGB	rgb(19, 24, 62)
HSL	hsl(233, 53%, 16%)
HSV	hsv(233, 69%, 24%)
CMYK	cmyk(69.4%, 61.3%, 0%, 75.7%)
CIE-LAB	lab(10.10, 11.91, -25.15)
CIE-LCH	lch(10.10, 27.82, 295.33°)
OKLab	oklab(22.96% 0.0046 -0.0721)
OKLCH	oklch(22.96% 0.072 273.6)
XYZ	xyz(1.4644, 1.1394, 4.6992)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13183E #3E3913

analogous

#132D3E #13183E #23133E

triadic

#13183E #3E1318 #183E13

tetradic

#13183E #3E132D #3E3913 #133E23

square

#13183E #3E132D #3E3913 #133E23

split-complementary

#13183E #3E2313 #2D3E13

monochromatic

#070917 #070917 #13183E #212A6D #303C9C

Accessibility & contrast

On white

17.10

#13183E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#13183E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13183E

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13183E	#FFFFFF	#000000	##FFFFFF
##13183E	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021E3F

Deuteranopia (green-blind)

#001A3D

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #13183e;
/* rgb */ color: rgb(19, 24, 62);
/* oklch */ color: oklch(23.0% 0.072 273.6);

Tailwind

colors: {
  custom: {
    50: '#565473',
    500: '#13183e',
    950: '#000000',
  },
}

SCSS

$custom: #13183e;
$custom-light: #565473;
$custom-dark: #000000;

JSON

{
  "hex": "#13183e",
  "rgb": {
    "r": 19,
    "g": 24,
    "b": 62
  },
  "hsl": {
    "h": 233.023,
    "s": 53.086,
    "l": 15.882
  },
  "oklch": {
    "l": 0.22963,
    "c": 0.07227,
    "h": 273.6
  },
  "luminance": 0.0114
}

Semantic roles & 50–950 ramp

primary

#13183E

secondary

#776F36

accent

#CC4BDC

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #13183E

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

Preview Lab → · Contrast checker → · Palette generator →