#131F3A#131F3A

#131F3A is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.4% C 0.054 H 264.6°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#131F3A
RGB	rgb(19, 31, 58)
HSL	hsl(222, 51%, 15%)
HSV	hsv(222, 67%, 23%)
CMYK	cmyk(67.2%, 46.6%, 0%, 77.3%)
CIE-LAB	lab(12.12, 4.84, -19.08)
CIE-LCH	lch(12.12, 19.69, 284.23°)
OKLab	oklab(24.4% -0.0051 -0.0542)
OKLCH	oklch(24.4% 0.054 264.6)
XYZ	xyz(1.5220, 1.4238, 4.1968)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F3A #3A2E13

analogous

#13333A #131F3A #1A133A

triadic

#131F3A #3A131F #1F3A13

tetradic

#131F3A #3A1333 #3A2E13 #133A1A

square

#131F3A #3A1333 #3A2E13 #133A1A

split-complementary

#131F3A #3A1A13 #333A13

monochromatic

#080C17 #080C17 #131F3A #223868 #315096

Accessibility & contrast

On white

16.34

#131F3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131F3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F3A

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F3A	#FFFFFF	#000000	##FFFFFF
##131F3A	1.00	16.34	1.28	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13223B

Deuteranopia (green-blind)

#0E1E39

Tritanopia (blue-blind)

#002529

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131f3a;
/* rgb */ color: rgb(19, 31, 58);
/* oklch */ color: oklch(24.4% 0.054 264.6);

Tailwind

colors: {
  custom: {
    50: '#555a70',
    500: '#131f3a',
    950: '#000000',
  },
}

SCSS

$custom: #131f3a;
$custom-light: #555a70;
$custom-dark: #000000;

JSON

{
  "hex": "#131f3a",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 58
  },
  "hsl": {
    "h": 221.538,
    "s": 50.649,
    "l": 15.098
  },
  "oklch": {
    "l": 0.24399,
    "c": 0.05444,
    "h": 264.6
  },
  "luminance": 0.01424
}

Semantic roles & 50–950 ramp

primary

#131F3A

secondary

#726036

accent

#AF4EDA

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #131F3A

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

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