#131B48#131B48

#131B48 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.084 H 271.2°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#131B48
RGB	rgb(19, 27, 72)
HSL	hsl(231, 58%, 18%)
HSV	hsv(231, 74%, 28%)
CMYK	cmyk(73.6%, 62.5%, 0%, 71.8%)
CIE-LAB	lab(11.89, 13.79, -29.27)
CIE-LCH	lch(11.89, 32.36, 295.22°)
OKLab	oklab(24.57% 0.0018 -0.0842)
OKLCH	oklch(24.57% 0.084 271.2)
XYZ	xyz(1.8298, 1.3900, 6.3015)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B48 #484013

analogous

#133548 #131B48 #251348

triadic

#131B48 #48131B #1B4813

tetradic

#131B48 #481335 #484013 #134825

square

#131B48 #481335 #484013 #134825

split-complementary

#131B48 #482513 #354813

monochromatic

#060918 #060918 #131B48 #202D78 #2D3FA9

Accessibility & contrast

On white

16.43

#131B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B48

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B48	#FFFFFF	#000000	##FFFFFF
##131B48	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224A

Deuteranopia (green-blind)

#001D47

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131b48;
/* rgb */ color: rgb(19, 27, 72);
/* oklch */ color: oklch(24.6% 0.084 271.2);

Tailwind

colors: {
  custom: {
    50: '#58577b',
    500: '#131b48',
    950: '#000000',
  },
}

SCSS

$custom: #131b48;
$custom-light: #58577b;
$custom-dark: #000000;

JSON

{
  "hex": "#131b48",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 72
  },
  "hsl": {
    "h": 230.943,
    "s": 58.242,
    "l": 17.843
  },
  "oklch": {
    "l": 0.24574,
    "c": 0.08423,
    "h": 271.2
  },
  "luminance": 0.0139
}

Semantic roles & 50–950 ramp

primary

#131B48

secondary

#817536

accent

#CA46E1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #131B48

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

Preview Lab → · Contrast checker → · Palette generator →