#131B68#131B68

#131B68 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.132 H 270.0°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#131B68
RGB	rgb(19, 27, 104)
HSL	hsl(234, 69%, 24%)
HSV	hsv(234, 82%, 41%)
CMYK	cmyk(81.7%, 74%, 0%, 59.2%)
CIE-LAB	lab(15.07, 26.83, -45.66)
CIE-LCH	lch(15.07, 52.96, 300.43°)
OKLab	oklab(27.88% 0 -0.1322)
OKLCH	oklch(27.88% 0.132 270)
XYZ	xyz(3.1583, 1.9214, 13.2984)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B68 #686013

analogous

#134668 #131B68 #361368

triadic

#131B68 #68131B #1B6813

tetradic

#131B68 #681346 #686013 #136836

square

#131B68 #681346 #686013 #136836

split-complementary

#131B68 #683613 #466813

monochromatic

#05071A #0A0E34 #131B68 #1C289C #2636CF

Accessibility & contrast

On white

15.17

#131B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#131B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B68

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B68	#FFFFFF	#000000	##FFFFFF
##131B68	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6A

Deuteranopia (green-blind)

#002267

Tritanopia (blue-blind)

#00303F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #131b68;
/* rgb */ color: rgb(19, 27, 104);
/* oklch */ color: oklch(27.9% 0.132 270.0);

Tailwind

colors: {
  custom: {
    50: '#615794',
    500: '#131b68',
    950: '#000000',
  },
}

SCSS

$custom: #131b68;
$custom-light: #615794;
$custom-dark: #000000;

JSON

{
  "hex": "#131b68",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 104
  },
  "hsl": {
    "h": 234.353,
    "s": 69.106,
    "l": 24.118
  },
  "oklch": {
    "l": 0.27883,
    "c": 0.13221,
    "h": 270
  },
  "luminance": 0.01922
}

Semantic roles & 50–950 ramp

primary

#131B68

secondary

#9F9637

accent

#DB3CEC

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #131B68

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

Preview Lab → · Contrast checker → · Palette generator →