#131B6F#131B6F

#131B6F is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.7% C 0.142 H 269.6°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#131B6F
RGB	rgb(19, 27, 111)
HSL	hsl(235, 71%, 25%)
HSV	hsv(235, 83%, 44%)
CMYK	cmyk(82.9%, 75.7%, 0%, 56.5%)
CIE-LAB	lab(15.85, 29.52, -48.95)
CIE-LCH	lch(15.85, 57.17, 301.10°)
OKLab	oklab(28.68% -0.0009 -0.1418)
OKLCH	oklch(28.68% 0.142 269.6)
XYZ	xyz(3.5288, 2.0696, 15.2493)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B6F #6F6713

analogous

#13496F #131B6F #39136F

triadic

#131B6F #6F131B #1B6F13

tetradic

#131B6F #6F1349 #6F6713 #136F39

square

#131B6F #6F1349 #6F6713 #136F39

split-complementary

#131B6F #6F3913 #496F13

monochromatic

#04061A #0A0E3B #131B6F #1C28A3 #2534D8

Accessibility & contrast

On white

14.85

#131B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#131B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B6F

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B6F	#FFFFFF	#000000	##FFFFFF
##131B6F	1.00	14.85	1.41	14.85
#FFFFFF	14.85	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C71

Deuteranopia (green-blind)

#00236D

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #131b6f;
/* rgb */ color: rgb(19, 27, 111);
/* oklch */ color: oklch(28.7% 0.142 269.6);

Tailwind

colors: {
  custom: {
    50: '#635899',
    500: '#131b6f',
    950: '#000000',
  },
}

SCSS

$custom: #131b6f;
$custom-light: #635899;
$custom-dark: #000000;

JSON

{
  "hex": "#131b6f",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 111
  },
  "hsl": {
    "h": 234.783,
    "s": 70.769,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28677,
    "c": 0.14179,
    "h": 269.6
  },
  "luminance": 0.0207
}

Semantic roles & 50–950 ramp

primary

#131B6F

secondary

#A69C38

accent

#DE3AEE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #131B6F

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

Preview Lab → · Contrast checker → · Palette generator →