#131C4A#131C4A

#131C4A is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 25.0% C 0.086 H 270.6°. Best body text is #FFFFFF at 16.25:1 contrast (WCAG AA passes).

Color values

HEX	#131C4A
RGB	rgb(19, 28, 74)
HSL	hsl(230, 59%, 18%)
HSV	hsv(230, 74%, 29%)
CMYK	cmyk(74.3%, 62.2%, 0%, 71%)
CIE-LAB	lab(12.37, 13.87, -29.88)
CIE-LCH	lch(12.37, 32.94, 294.89°)
OKLab	oklab(24.99% 0.0009 -0.086)
OKLCH	oklch(24.99% 0.086 270.6)
XYZ	xyz(1.9194, 1.4632, 6.6585)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.28

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C4A #4A4113

analogous

#13374A #131C4A #25134A

triadic

#131C4A #4A131C #1C4A13

tetradic

#131C4A #4A1337 #4A4113 #134A25

square

#131C4A #4A1337 #4A4113 #134A25

split-complementary

#131C4A #4A2513 #374A13

monochromatic

#060918 #060A19 #131C4A #202E7B #2C41AB

Accessibility & contrast

On white

16.25

#131C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C4A

16.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C4A	#FFFFFF	#000000	##FFFFFF
##131C4A	1.00	16.25	1.29	16.25
#FFFFFF	16.25	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234C

Deuteranopia (green-blind)

#001E49

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131c4a;
/* rgb */ color: rgb(19, 28, 74);
/* oklch */ color: oklch(25.0% 0.086 270.6);

Tailwind

colors: {
  custom: {
    50: '#59577d',
    500: '#131c4a',
    950: '#000000',
  },
}

SCSS

$custom: #131c4a;
$custom-light: #59577d;
$custom-dark: #000000;

JSON

{
  "hex": "#131c4a",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 74
  },
  "hsl": {
    "h": 230.182,
    "s": 59.14,
    "l": 18.235
  },
  "oklch": {
    "l": 0.24989,
    "c": 0.08597,
    "h": 270.6
  },
  "luminance": 0.01463
}

Semantic roles & 50–950 ramp

primary

#131C4A

secondary

#837636

accent

#C945E2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #131C4A

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

Preview Lab → · Contrast checker → · Palette generator →