#131C4B#131C4B

#131C4B is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.088 H 270.6°. Best body text is #FFFFFF at 16.21:1 contrast (WCAG AA passes).

Color values

HEX	#131C4B
RGB	rgb(19, 28, 75)
HSL	hsl(230, 60%, 18%)
HSV	hsv(230, 75%, 29%)
CMYK	cmyk(74.7%, 62.7%, 0%, 70.6%)
CIE-LAB	lab(12.46, 14.29, -30.43)
CIE-LCH	lch(12.46, 33.61, 295.15°)
OKLab	oklab(25.08% 0.0009 -0.0876)
OKLCH	oklch(25.08% 0.088 270.6)
XYZ	xyz(1.9534, 1.4768, 6.8373)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.31

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C4B #4B4213

analogous

#13384B #131C4B #26134B

triadic

#131C4B #4B131C #1C4B13

tetradic

#131C4B #4B1338 #4B4213 #134B26

square

#131C4B #4B1338 #4B4213 #134B26

split-complementary

#131C4B #4B2613 #384B13

monochromatic

#060918 #070A1A #131C4B #1F2E7C #2C40AD

Accessibility & contrast

On white

16.21

#131C4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#131C4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C4B

16.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C4B	#FFFFFF	#000000	##FFFFFF
##131C4B	1.00	16.21	1.30	16.21
#FFFFFF	16.21	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234D

Deuteranopia (green-blind)

#001E4A

Tritanopia (blue-blind)

#002730

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131c4b;
/* rgb */ color: rgb(19, 28, 75);
/* oklch */ color: oklch(25.1% 0.088 270.6);

Tailwind

colors: {
  custom: {
    50: '#59577e',
    500: '#131c4b',
    950: '#000000',
  },
}

SCSS

$custom: #131c4b;
$custom-light: #59577e;
$custom-dark: #000000;

JSON

{
  "hex": "#131c4b",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 75
  },
  "hsl": {
    "h": 230.357,
    "s": 59.574,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25083,
    "c": 0.08758,
    "h": 270.6
  },
  "luminance": 0.01477
}

Semantic roles & 50–950 ramp

primary

#131C4B

secondary

#847736

accent

#C945E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131C4B

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

Preview Lab → · Contrast checker → · Palette generator →