#131B4C#131B4C

#131B4C is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 25.0% C 0.091 H 271.2°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#131B4C
RGB	rgb(19, 27, 76)
HSL	hsl(232, 60%, 19%)
HSV	hsv(232, 75%, 30%)
CMYK	cmyk(75%, 64.5%, 0%, 70.2%)
CIE-LAB	lab(12.25, 15.47, -31.46)
CIE-LCH	lch(12.25, 35.06, 296.18°)
OKLab	oklab(24.95% 0.0019 -0.0906)
OKLCH	oklch(24.95% 0.091 271.2)
XYZ	xyz(1.9646, 1.4439, 7.0112)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B4C #4C4413

analogous

#13374C #131B4C #27134C

triadic

#131B4C #4C131B #1B4C13

tetradic

#131B4C #4C1337 #4C4413 #134C27

square

#131B4C #4C1337 #4C4413 #134C27

split-complementary

#131B4C #4C2713 #374C13

monochromatic

#060918 #070A1B #131B4C #1F2C7D #2B3EAE

Accessibility & contrast

On white

16.29

#131B4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131B4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B4C

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B4C	#FFFFFF	#000000	##FFFFFF
##131B4C	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234E

Deuteranopia (green-blind)

#001D4B

Tritanopia (blue-blind)

#002730

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131b4c;
/* rgb */ color: rgb(19, 27, 76);
/* oklch */ color: oklch(25.0% 0.091 271.2);

Tailwind

colors: {
  custom: {
    50: '#59577e',
    500: '#131b4c',
    950: '#000000',
  },
}

SCSS

$custom: #131b4c;
$custom-light: #59577e;
$custom-dark: #000000;

JSON

{
  "hex": "#131b4c",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 76
  },
  "hsl": {
    "h": 231.579,
    "s": 60,
    "l": 18.627
  },
  "oklch": {
    "l": 0.24952,
    "c": 0.09066,
    "h": 271.2
  },
  "luminance": 0.01444
}

Semantic roles & 50–950 ramp

primary

#131B4C

secondary

#857A36

accent

#CD45E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131B4C

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

Preview Lab → · Contrast checker → · Palette generator →