#131D3A#131D3A

#131D3A is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.9% C 0.057 H 267.6°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#131D3A
RGB	rgb(19, 29, 58)
HSL	hsl(225, 51%, 15%)
HSV	hsv(225, 67%, 23%)
CMYK	cmyk(67.2%, 50%, 0%, 77.3%)
CIE-LAB	lab(11.43, 6.37, -20.17)
CIE-LCH	lch(11.43, 21.15, 287.53°)
OKLab	oklab(23.87% -0.0024 -0.0574)
OKLCH	oklch(23.87% 0.057 267.6)
XYZ	xyz(1.4714, 1.3225, 4.1799)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D3A #3A3013

analogous

#13313A #131D3A #1C133A

triadic

#131D3A #3A131D #1D3A13

tetradic

#131D3A #3A1331 #3A3013 #133A1C

square

#131D3A #3A1331 #3A3013 #133A1C

split-complementary

#131D3A #3A1C13 #313A13

monochromatic

#080C17 #080C17 #131D3A #223468 #314B96

Accessibility & contrast

On white

16.61

#131D3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#131D3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D3A

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D3A	#FFFFFF	#000000	##FFFFFF
##131D3A	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10203B

Deuteranopia (green-blind)

#0B1D39

Tritanopia (blue-blind)

#002328

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #131d3a;
/* rgb */ color: rgb(19, 29, 58);
/* oklch */ color: oklch(23.9% 0.057 267.6);

Tailwind

colors: {
  custom: {
    50: '#555870',
    500: '#131d3a',
    950: '#000000',
  },
}

SCSS

$custom: #131d3a;
$custom-light: #555870;
$custom-dark: #000000;

JSON

{
  "hex": "#131d3a",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 58
  },
  "hsl": {
    "h": 224.615,
    "s": 50.649,
    "l": 15.098
  },
  "oklch": {
    "l": 0.23873,
    "c": 0.05746,
    "h": 267.6
  },
  "luminance": 0.01323
}

Semantic roles & 50–950 ramp

primary

#131D3A

secondary

#726336

accent

#B64EDA

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #131D3A

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

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