#131B71#131B71

#131B71 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.9% C 0.144 H 269.5°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#131B71
RGB	rgb(19, 27, 113)
HSL	hsl(235, 71%, 26%)
HSV	hsv(235, 83%, 44%)
CMYK	cmyk(83.2%, 76.1%, 0%, 55.7%)
CIE-LAB	lab(16.07, 30.28, -49.88)
CIE-LCH	lch(16.07, 58.35, 301.26°)
OKLab	oklab(28.91% -0.0012 -0.1445)
OKLCH	oklch(28.91% 0.144 269.5)
XYZ	xyz(3.6401, 2.1141, 15.8358)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B71 #716913

analogous

#134A71 #131B71 #3A1371

triadic

#131B71 #71131B #1B7113

tetradic

#131B71 #71134A #716913 #13713A

square

#131B71 #71134A #716913 #13713A

split-complementary

#131B71 #713A13 #4A7113

monochromatic

#04061A #0A0E3D #131B71 #1C28A5 #2534DA

Accessibility & contrast

On white

14.76

#131B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#131B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B71

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B71	#FFFFFF	#000000	##FFFFFF
##131B71	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D74

Deuteranopia (green-blind)

#00236F

Tritanopia (blue-blind)

#003444

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #131b71;
/* rgb */ color: rgb(19, 27, 113);
/* oklch */ color: oklch(28.9% 0.144 269.5);

Tailwind

colors: {
  custom: {
    50: '#64589b',
    500: '#131b71',
    950: '#000000',
  },
}

SCSS

$custom: #131b71;
$custom-light: #64589b;
$custom-dark: #000000;

JSON

{
  "hex": "#131b71",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 113
  },
  "hsl": {
    "h": 234.894,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28907,
    "c": 0.14448,
    "h": 269.5
  },
  "luminance": 0.02115
}

Semantic roles & 50–950 ramp

primary

#131B71

secondary

#A89E38

accent

#DF3AEE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #131B71

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

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