#131B4E#131B4E

#131B4E is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.094 H 271.2°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#131B4E
RGB	rgb(19, 27, 78)
HSL	hsl(232, 61%, 19%)
HSV	hsv(232, 76%, 31%)
CMYK	cmyk(75.6%, 65.4%, 0%, 69.4%)
CIE-LAB	lab(12.43, 16.30, -32.54)
CIE-LCH	lch(12.43, 36.39, 296.61°)
OKLab	oklab(25.15% 0.0019 -0.0938)
OKLCH	oklch(25.15% 0.094 271.2)
XYZ	xyz(2.0352, 1.4722, 7.3832)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B4E #4E4613

analogous

#13394E #131B4E #29134E

triadic

#131B4E #4E131B #1B4E13

tetradic

#131B4E #4E1339 #4E4613 #134E29

square

#131B4E #4E1339 #4E4613 #134E29

split-complementary

#131B4E #4E2913 #394E13

monochromatic

#060919 #070A1D #131B4E #1F2C7F #2B3DB0

Accessibility & contrast

On white

16.22

#131B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B4E

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B4E	#FFFFFF	#000000	##FFFFFF
##131B4E	1.00	16.22	1.29	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002350

Deuteranopia (green-blind)

#001E4D

Tritanopia (blue-blind)

#002831

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131b4e;
/* rgb */ color: rgb(19, 27, 78);
/* oklch */ color: oklch(25.1% 0.094 271.2);

Tailwind

colors: {
  custom: {
    50: '#5a5780',
    500: '#131b4e',
    950: '#000000',
  },
}

SCSS

$custom: #131b4e;
$custom-light: #5a5780;
$custom-dark: #000000;

JSON

{
  "hex": "#131b4e",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 78
  },
  "hsl": {
    "h": 231.864,
    "s": 60.825,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25145,
    "c": 0.09383,
    "h": 271.2
  },
  "luminance": 0.01472
}

Semantic roles & 50–950 ramp

primary

#131B4E

secondary

#877C36

accent

#CE44E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131B4E

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

Preview Lab → · Contrast checker → · Palette generator →