#13183A#13183A

#13183A is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.065 H 273.7°. Best body text is #FFFFFF at 17.22:1 contrast (WCAG AA passes).

Color values

HEX	#13183A
RGB	rgb(19, 24, 58)
HSL	hsl(232, 51%, 15%)
HSV	hsv(232, 67%, 23%)
CMYK	cmyk(67.2%, 58.6%, 0%, 77.3%)
CIE-LAB	lab(9.78, 10.25, -22.82)
CIE-LCH	lch(9.78, 25.02, 294.18°)
OKLab	oklab(22.61% 0.0042 -0.0653)
OKLCH	oklch(22.61% 0.065 273.7)
XYZ	xyz(1.3587, 1.0971, 4.1423)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13183A #3A3513

analogous

#132B3A #13183A #22133A

triadic

#13183A #3A1318 #183A13

tetradic

#13183A #3A132B #3A3513 #133A22

square

#13183A #3A132B #3A3513 #133A22

split-complementary

#13183A #3A2213 #2B3A13

monochromatic

#080A17 #080A17 #13183A #222B68 #313E96

Accessibility & contrast

On white

17.22

#13183A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#13183A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13183A

17.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13183A	#FFFFFF	#000000	##FFFFFF
##13183A	1.00	17.22	1.22	17.22
#FFFFFF	17.22	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061D3B

Deuteranopia (green-blind)

#021939

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #13183a;
/* rgb */ color: rgb(19, 24, 58);
/* oklch */ color: oklch(22.6% 0.065 273.7);

Tailwind

colors: {
  custom: {
    50: '#555470',
    500: '#13183a',
    950: '#000000',
  },
}

SCSS

$custom: #13183a;
$custom-light: #555470;
$custom-dark: #000000;

JSON

{
  "hex": "#13183a",
  "rgb": {
    "r": 19,
    "g": 24,
    "b": 58
  },
  "hsl": {
    "h": 232.308,
    "s": 50.649,
    "l": 15.098
  },
  "oklch": {
    "l": 0.22612,
    "c": 0.06542,
    "h": 273.7
  },
  "luminance": 0.01097
}

Semantic roles & 50–950 ramp

primary

#13183A

secondary

#726B36

accent

#C84EDA

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #13183A

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

Preview Lab → · Contrast checker → · Palette generator →