#131C40#131C40

#131C40 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.069 H 270.0°. Best body text is #FFFFFF at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#131C40
RGB	rgb(19, 28, 64)
HSL	hsl(228, 54%, 16%)
HSV	hsv(228, 70%, 25%)
CMYK	cmyk(70.3%, 56.2%, 0%, 74.9%)
CIE-LAB	lab(11.55, 9.65, -24.24)
CIE-LCH	lch(11.55, 26.09, 291.71°)
OKLab	oklab(24.1% 0 -0.0694)
OKLCH	oklch(24.1% 0.069 270)
XYZ	xyz(1.6089, 1.3390, 5.0232)
Luminance	0.0134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C40 #403713

analogous

#133340 #131C40 #211340

triadic

#131C40 #40131C #1C4013

tetradic

#131C40 #401333 #403713 #134021

square

#131C40 #401333 #403713 #134021

split-complementary

#131C40 #402113 #334013

monochromatic

#070A18 #070A18 #131C40 #21316F #2F459E

Accessibility & contrast

On white

16.56

#131C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#131C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C40

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C40	#FFFFFF	#000000	##FFFFFF
##131C40	1.00	16.56	1.27	16.56
#FFFFFF	16.56	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#092141

Deuteranopia (green-blind)

#021D3F

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131c40;
/* rgb */ color: rgb(19, 28, 64);
/* oklch */ color: oklch(24.1% 0.069 270.0);

Tailwind

colors: {
  custom: {
    50: '#565775',
    500: '#131c40',
    950: '#000000',
  },
}

SCSS

$custom: #131c40;
$custom-light: #565775;
$custom-dark: #000000;

JSON

{
  "hex": "#131c40",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 64
  },
  "hsl": {
    "h": 228,
    "s": 54.217,
    "l": 16.275
  },
  "oklch": {
    "l": 0.24103,
    "c": 0.06938,
    "h": 270
  },
  "luminance": 0.01339
}

Semantic roles & 50–950 ramp

primary

#131C40

secondary

#796B36

accent

#C04ADE

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131C40

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

Preview Lab → · Contrast checker → · Palette generator →