#131B4D#131B4D

#131B4D is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.0% C 0.092 H 271.2°. Best body text is #FFFFFF at 16.26:1 contrast (WCAG AA passes).

Color values

HEX	#131B4D
RGB	rgb(19, 27, 77)
HSL	hsl(232, 60%, 19%)
HSV	hsv(232, 75%, 30%)
CMYK	cmyk(75.3%, 64.9%, 0%, 69.8%)
CIE-LAB	lab(12.34, 15.88, -32.00)
CIE-LCH	lch(12.34, 35.73, 296.40°)
OKLab	oklab(25.05% 0.0019 -0.0922)
OKLCH	oklch(25.05% 0.092 271.2)
XYZ	xyz(1.9996, 1.4579, 7.1958)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B4D #4D4513

analogous

#13384D #131B4D #28134D

triadic

#131B4D #4D131B #1B4D13

tetradic

#131B4D #4D1338 #4D4513 #134D28

square

#131B4D #4D1338 #4D4513 #134D28

split-complementary

#131B4D #4D2813 #384D13

monochromatic

#060919 #070A1C #131B4D #1F2C7E #2B3DAF

Accessibility & contrast

On white

16.26

#131B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B4D

16.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B4D	#FFFFFF	#000000	##FFFFFF
##131B4D	1.00	16.26	1.29	16.26
#FFFFFF	16.26	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234F

Deuteranopia (green-blind)

#001E4C

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131b4d;
/* rgb */ color: rgb(19, 27, 77);
/* oklch */ color: oklch(25.0% 0.092 271.2);

Tailwind

colors: {
  custom: {
    50: '#5a577f',
    500: '#131b4d',
    950: '#000000',
  },
}

SCSS

$custom: #131b4d;
$custom-light: #5a577f;
$custom-dark: #000000;

JSON

{
  "hex": "#131b4d",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 77
  },
  "hsl": {
    "h": 231.724,
    "s": 60.417,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25048,
    "c": 0.09225,
    "h": 271.2
  },
  "luminance": 0.01458
}

Semantic roles & 50–950 ramp

primary

#131B4D

secondary

#867B36

accent

#CE44E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131B4D

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

Preview Lab → · Contrast checker → · Palette generator →