#131B47#131B47

#131B47 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.083 H 271.2°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#131B47
RGB	rgb(19, 27, 71)
HSL	hsl(231, 58%, 18%)
HSV	hsv(231, 73%, 28%)
CMYK	cmyk(73.2%, 62%, 0%, 72.2%)
CIE-LAB	lab(11.80, 13.36, -28.72)
CIE-LCH	lch(11.80, 31.68, 294.95°)
OKLab	oklab(24.48% 0.0018 -0.0826)
OKLCH	oklch(24.48% 0.083 271.2)
XYZ	xyz(1.7974, 1.3771, 6.1311)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B47 #473F13

analogous

#133547 #131B47 #251347

triadic

#131B47 #47131B #1B4713

tetradic

#131B47 #471335 #473F13 #134725

square

#131B47 #471335 #473F13 #134725

split-complementary

#131B47 #472513 #354713

monochromatic

#060918 #060918 #131B47 #202D77 #2D40A8

Accessibility & contrast

On white

16.47

#131B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B47

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B47	#FFFFFF	#000000	##FFFFFF
##131B47	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002249

Deuteranopia (green-blind)

#001D46

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131b47;
/* rgb */ color: rgb(19, 27, 71);
/* oklch */ color: oklch(24.5% 0.083 271.2);

Tailwind

colors: {
  custom: {
    50: '#58577b',
    500: '#131b47',
    950: '#000000',
  },
}

SCSS

$custom: #131b47;
$custom-light: #58577b;
$custom-dark: #000000;

JSON

{
  "hex": "#131b47",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 230.769,
    "s": 57.778,
    "l": 17.647
  },
  "oklch": {
    "l": 0.24482,
    "c": 0.0826,
    "h": 271.2
  },
  "luminance": 0.01377
}

Semantic roles & 50–950 ramp

primary

#131B47

secondary

#807436

accent

#C947E1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #131B47

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

Preview Lab → · Contrast checker → · Palette generator →