#131B74#131B74

#131B74 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.148 H 269.4°. Best body text is #FFFFFF at 14.62:1 contrast (WCAG AA passes).

Color values

HEX	#131B74
RGB	rgb(19, 27, 116)
HSL	hsl(235, 72%, 26%)
HSV	hsv(235, 84%, 45%)
CMYK	cmyk(83.6%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(16.42, 31.41, -51.25)
CIE-LCH	lch(16.42, 60.11, 301.50°)
OKLab	oklab(29.25% -0.0016 -0.1485)
OKLCH	oklch(29.25% 0.148 269.4)
XYZ	xyz(3.8118, 2.1828, 16.7400)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B74 #746C13

analogous

#134C74 #131B74 #3C1374

triadic

#131B74 #74131B #1B7413

tetradic

#131B74 #74134C #746C13 #13743C

square

#131B74 #74134C #746C13 #13743C

split-complementary

#131B74 #743C13 #4C7413

monochromatic

#04061A #0A0F3F #131B74 #1C27A9 #2635DB

Accessibility & contrast

On white

14.62

#131B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#131B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B74

14.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B74	#FFFFFF	#000000	##FFFFFF
##131B74	1.00	14.62	1.44	14.62
#FFFFFF	14.62	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D77

Deuteranopia (green-blind)

#002472

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #131b74;
/* rgb */ color: rgb(19, 27, 116);
/* oklch */ color: oklch(29.3% 0.148 269.4);

Tailwind

colors: {
  custom: {
    50: '#65589d',
    500: '#131b74',
    950: '#000000',
  },
}

SCSS

$custom: #131b74;
$custom-light: #65589d;
$custom-dark: #000000;

JSON

{
  "hex": "#131b74",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 235.052,
    "s": 71.852,
    "l": 26.471
  },
  "oklch": {
    "l": 0.29254,
    "c": 0.14848,
    "h": 269.4
  },
  "luminance": 0.02183
}

Semantic roles & 50–950 ramp

primary

#131B74

secondary

#AAA138

accent

#E039EF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #131B74

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

Preview Lab → · Contrast checker → · Palette generator →