#131C3F#131C3F

#131C3F is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.068 H 269.8°. Best body text is #FFFFFF at 16.59:1 contrast (WCAG AA passes).

Color values

HEX	#131C3F
RGB	rgb(19, 28, 63)
HSL	hsl(228, 54%, 16%)
HSV	hsv(228, 70%, 25%)
CMYK	cmyk(69.8%, 55.6%, 0%, 75.3%)
CIE-LAB	lab(11.47, 9.23, -23.66)
CIE-LCH	lch(11.47, 25.39, 291.31°)
OKLab	oklab(24.02% -0.0002 -0.0677)
OKLCH	oklch(24.02% 0.068 269.8)
XYZ	xyz(1.5807, 1.3277, 4.8746)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C3F #3F3613

analogous

#13323F #131C3F #20133F

triadic

#131C3F #3F131C #1C3F13

tetradic

#131C3F #3F1332 #3F3613 #133F20

square

#131C3F #3F1332 #3F3613 #133F20

split-complementary

#131C3F #3F2013 #323F13

monochromatic

#070A18 #070A18 #131C3F #21316E #2F469D

Accessibility & contrast

On white

16.59

#131C3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#131C3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C3F

16.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C3F	#FFFFFF	#000000	##FFFFFF
##131C3F	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)

#0A2040

Deuteranopia (green-blind)

#031D3E

Tritanopia (blue-blind)

#00242A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #131c3f;
/* rgb */ color: rgb(19, 28, 63);
/* oklch */ color: oklch(24.0% 0.068 269.8);

Tailwind

colors: {
  custom: {
    50: '#565774',
    500: '#131c3f',
    950: '#000000',
  },
}

SCSS

$custom: #131c3f;
$custom-light: #565774;
$custom-dark: #000000;

JSON

{
  "hex": "#131c3f",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 63
  },
  "hsl": {
    "h": 227.727,
    "s": 53.659,
    "l": 16.078
  },
  "oklch": {
    "l": 0.2402,
    "c": 0.06767,
    "h": 269.8
  },
  "luminance": 0.01328
}

Semantic roles & 50–950 ramp

primary

#131C3F

secondary

#786A36

accent

#BF4BDD

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131C3F

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

Preview Lab → · Contrast checker → · Palette generator →