#131F66#131F66

#131F66 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.4% C 0.124 H 269.0°. Best body text is #FFFFFF at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#131F66
RGB	rgb(19, 31, 102)
HSL	hsl(231, 69%, 24%)
HSV	hsv(231, 81%, 40%)
CMYK	cmyk(81.4%, 69.6%, 0%, 60%)
CIE-LAB	lab(15.89, 23.26, -43.00)
CIE-LCH	lch(15.89, 48.89, 298.41°)
OKLab	oklab(28.41% -0.0021 -0.1244)
OKLCH	oklch(28.41% 0.124 269)
XYZ	xyz(3.1560, 2.0774, 12.8024)
Luminance	0.0208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F66 #665A13

analogous

#134866 #131F66 #301366

triadic

#131F66 #66131F #1F6613

tetradic

#131F66 #661348 #665A13 #136630

square

#131F66 #661348 #665A13 #136630

split-complementary

#131F66 #663013 #486613

monochromatic

#05081A #090F32 #131F66 #1D2F9A #263ECD

Accessibility & contrast

On white

14.83

#131F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#131F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F66

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F66	#FFFFFF	#000000	##FFFFFF
##131F66	1.00	14.83	1.42	14.83
#FFFFFF	14.83	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C68

Deuteranopia (green-blind)

#002465

Tritanopia (blue-blind)

#00323F

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #131f66;
/* rgb */ color: rgb(19, 31, 102);
/* oklch */ color: oklch(28.4% 0.124 269.0);

Tailwind

colors: {
  custom: {
    50: '#605a92',
    500: '#131f66',
    950: '#000000',
  },
}

SCSS

$custom: #131f66;
$custom-light: #605a92;
$custom-dark: #000000;

JSON

{
  "hex": "#131f66",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 102
  },
  "hsl": {
    "h": 231.325,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.28414,
    "c": 0.12445,
    "h": 269
  },
  "luminance": 0.02078
}

Semantic roles & 50–950 ramp

primary

#131F66

secondary

#9D8F37

accent

#D23CEB

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06040D

muted

#7A797E

Preview Lab

Preview with #131F66

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

Preview Lab → · Contrast checker → · Palette generator →