#131B43#131B43

#131B43 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.076 H 271.1°. Best body text is #FFFFFF at 16.59:1 contrast (WCAG AA passes).

Color values

HEX	#131B43
RGB	rgb(19, 27, 67)
HSL	hsl(230, 56%, 17%)
HSV	hsv(230, 72%, 26%)
CMYK	cmyk(71.6%, 59.7%, 0%, 73.7%)
CIE-LAB	lab(11.47, 11.68, -26.47)
CIE-LCH	lch(11.47, 28.94, 293.81°)
OKLab	oklab(24.12% 0.0015 -0.076)
OKLCH	oklch(24.12% 0.076 271.1)
XYZ	xyz(1.6733, 1.3274, 5.4771)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B43 #433B13

analogous

#133343 #131B43 #231343

triadic

#131B43 #43131B #1B4313

tetradic

#131B43 #431333 #433B13 #134323

square

#131B43 #431333 #433B13 #134323

split-complementary

#131B43 #432313 #334313

monochromatic

#070A18 #070A18 #131B43 #212E73 #2E41A2

Accessibility & contrast

On white

16.59

#131B43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#131B43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B43

16.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B43	#FFFFFF	#000000	##FFFFFF
##131B43	1.00	16.59	1.27	16.59
#FFFFFF	16.59	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032144

Deuteranopia (green-blind)

#001C42

Tritanopia (blue-blind)

#00242B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #131b43;
/* rgb */ color: rgb(19, 27, 67);
/* oklch */ color: oklch(24.1% 0.076 271.1);

Tailwind

colors: {
  custom: {
    50: '#575677',
    500: '#131b43',
    950: '#000000',
  },
}

SCSS

$custom: #131b43;
$custom-light: #575677;
$custom-dark: #000000;

JSON

{
  "hex": "#131b43",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 67
  },
  "hsl": {
    "h": 230,
    "s": 55.814,
    "l": 16.863
  },
  "oklch": {
    "l": 0.2412,
    "c": 0.07598,
    "h": 271.1
  },
  "luminance": 0.01328
}

Semantic roles & 50–950 ramp

primary

#131B43

secondary

#7C7036

accent

#C649DF

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #131B43

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

Preview Lab → · Contrast checker → · Palette generator →