#191B47#191B47

#191B47 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.081 H 276.9°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#191B47
RGB	rgb(25, 27, 71)
HSL	hsl(237, 48%, 19%)
HSV	hsv(237, 65%, 28%)
CMYK	cmyk(64.8%, 62%, 0%, 72.2%)
CIE-LAB	lab(12.26, 14.61, -27.97)
CIE-LCH	lch(12.26, 31.55, 297.59°)
OKLab	oklab(24.94% 0.0096 -0.0802)
OKLCH	oklch(24.94% 0.081 276.9)
XYZ	xyz(1.9298, 1.4453, 6.1373)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B47 #474519

analogous

#193247 #191B47 #2E1947

triadic

#191B47 #47191B #1B4719

tetradic

#191B47 #471932 #474519 #19472E

square

#191B47 #471932 #474519 #19472E

split-complementary

#191B47 #472E19 #324719

monochromatic

#080917 #090A1A #191B47 #292C74 #393DA2

Accessibility & contrast

On white

16.29

#191B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#191B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B47

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B47	#FFFFFF	#000000	##FFFFFF
##191B47	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)

#002249

Deuteranopia (green-blind)

#001E46

Tritanopia (blue-blind)

#00252D

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #191b47;
/* rgb */ color: rgb(25, 27, 71);
/* oklch */ color: oklch(24.9% 0.081 276.9);

Tailwind

colors: {
  custom: {
    50: '#5b577b',
    500: '#191b47',
    950: '#000000',
  },
}

SCSS

$custom: #191b47;
$custom-light: #5b577b;
$custom-dark: #000000;

JSON

{
  "hex": "#191b47",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 237.391,
    "s": 47.917,
    "l": 18.824
  },
  "oklch": {
    "l": 0.24938,
    "c": 0.08076,
    "h": 276.9
  },
  "luminance": 0.01445
}

Semantic roles & 50–950 ramp

primary

#191B47

secondary

#7D7B3E

accent

#D250D8

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #191B47

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

Preview Lab → · Contrast checker → · Palette generator →