#131F33#131F33

#131F33 is a very dark, muted blue. Relative luminance 0.014; OKLCH L 23.9% C 0.042 H 260.2°. Best body text is #FFFFFF at 16.52:1 contrast (WCAG AA passes).

Color values

HEX	#131F33
RGB	rgb(19, 31, 51)
HSL	hsl(218, 46%, 14%)
HSV	hsv(218, 63%, 20%)
CMYK	cmyk(62.7%, 39.2%, 0%, 80%)
CIE-LAB	lab(11.67, 2.00, -14.79)
CIE-LCH	lch(11.67, 14.92, 277.68°)
OKLab	oklab(23.91% -0.0072 -0.0416)
OKLCH	oklch(23.91% 0.042 260.2)
XYZ	xyz(1.3559, 1.3573, 3.3219)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F33 #332713

analogous

#132F33 #131F33 #171333

triadic

#131F33 #33131F #1F3313

tetradic

#131F33 #33132F #332713 #133317

square

#131F33 #33132F #332713 #133317

split-complementary

#131F33 #331713 #2F3313

monochromatic

#080E16 #080E16 #131F33 #243A60 #34558C

Accessibility & contrast

On white

16.52

#131F33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#131F33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F33

16.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F33	#FFFFFF	#000000	##FFFFFF
##131F33	1.00	16.52	1.27	16.52
#FFFFFF	16.52	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172034

Deuteranopia (green-blind)

#131D33

Tritanopia (blue-blind)

#042326

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131f33;
/* rgb */ color: rgb(19, 31, 51);
/* oklch */ color: oklch(23.9% 0.042 260.2);

Tailwind

colors: {
  custom: {
    50: '#535a6a',
    500: '#131f33',
    950: '#000000',
  },
}

SCSS

$custom: #131f33;
$custom-light: #535a6a;
$custom-dark: #000000;

JSON

{
  "hex": "#131f33",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 51
  },
  "hsl": {
    "h": 217.5,
    "s": 45.714,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23909,
    "c": 0.04227,
    "h": 260.2
  },
  "luminance": 0.01357
}

Semantic roles & 50–950 ramp

primary

#131F33

secondary

#6B5737

accent

#A452D5

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #131F33

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

Preview Lab → · Contrast checker → · Palette generator →