#131F3C#131F3C

#131F3C is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.5% C 0.058 H 265.4°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#131F3C
RGB	rgb(19, 31, 60)
HSL	hsl(222, 52%, 15%)
HSV	hsv(222, 68%, 24%)
CMYK	cmyk(68.3%, 48.3%, 0%, 76.5%)
CIE-LAB	lab(12.25, 5.67, -20.29)
CIE-LCH	lch(12.25, 21.06, 285.62°)
OKLab	oklab(24.55% -0.0046 -0.0577)
OKLCH	oklch(24.55% 0.058 265.4)
XYZ	xyz(1.5739, 1.4445, 4.4700)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F3C #3C3013

analogous

#13333C #131F3C #1B133C

triadic

#131F3C #3C131F #1F3C13

tetradic

#131F3C #3C1333 #3C3013 #133C1B

square

#131F3C #3C1333 #3C3013 #133C1B

split-complementary

#131F3C #3C1B13 #333C13

monochromatic

#070C17 #070C17 #131F3C #22376A #304F99

Accessibility & contrast

On white

16.29

#131F3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131F3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F3C

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F3C	#FFFFFF	#000000	##FFFFFF
##131F3C	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12223D

Deuteranopia (green-blind)

#0D1E3B

Tritanopia (blue-blind)

#00252A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131f3c;
/* rgb */ color: rgb(19, 31, 60);
/* oklch */ color: oklch(24.5% 0.058 265.4);

Tailwind

colors: {
  custom: {
    50: '#555a72',
    500: '#131f3c',
    950: '#000000',
  },
}

SCSS

$custom: #131f3c;
$custom-light: #555a72;
$custom-dark: #000000;

JSON

{
  "hex": "#131f3c",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 60
  },
  "hsl": {
    "h": 222.439,
    "s": 51.899,
    "l": 15.49
  },
  "oklch": {
    "l": 0.24548,
    "c": 0.0579,
    "h": 265.4
  },
  "luminance": 0.01445
}

Semantic roles & 50–950 ramp

primary

#131F3C

secondary

#746236

accent

#B24CDB

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #131F3C

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

Preview Lab → · Contrast checker → · Palette generator →