#131B38#131B38

#131B38 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.2% C 0.057 H 269.9°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#131B38
RGB	rgb(19, 27, 56)
HSL	hsl(227, 49%, 15%)
HSV	hsv(227, 66%, 22%)
CMYK	cmyk(66.1%, 51.8%, 0%, 78%)
CIE-LAB	lab(10.61, 7.09, -20.05)
CIE-LCH	lch(10.61, 21.26, 289.47°)
OKLab	oklab(23.2% -0.0001 -0.0571)
OKLCH	oklch(23.2% 0.057 269.9)
XYZ	xyz(1.3741, 1.2077, 3.9013)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B38 #383013

analogous

#132E38 #131B38 #1E1338

triadic

#131B38 #38131B #1B3813

tetradic

#131B38 #38132E #383013 #13381E

square

#131B38 #38132E #383013 #13381E

split-complementary

#131B38 #381E13 #2E3813

monochromatic

#080B17 #080B17 #131B38 #233166 #324793

Accessibility & contrast

On white

16.91

#131B38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#131B38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B38

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B38	#FFFFFF	#000000	##FFFFFF
##131B38	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E1E39

Deuteranopia (green-blind)

#091B37

Tritanopia (blue-blind)

#012126

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131b38;
/* rgb */ color: rgb(19, 27, 56);
/* oklch */ color: oklch(23.2% 0.057 269.9);

Tailwind

colors: {
  custom: {
    50: '#54566f',
    500: '#131b38',
    950: '#000000',
  },
}

SCSS

$custom: #131b38;
$custom-light: #54566f;
$custom-dark: #000000;

JSON

{
  "hex": "#131b38",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 56
  },
  "hsl": {
    "h": 227.027,
    "s": 49.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.23201,
    "c": 0.05708,
    "h": 269.9
  },
  "luminance": 0.01208
}

Semantic roles & 50–950 ramp

primary

#131B38

secondary

#706437

accent

#BB4FD9

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #131B38

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

Preview Lab → · Contrast checker → · Palette generator →