#191B41#191B41

#191B41 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.071 H 277.5°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#191B41
RGB	rgb(25, 27, 65)
HSL	hsl(237, 44%, 18%)
HSV	hsv(237, 62%, 25%)
CMYK	cmyk(61.5%, 58.5%, 0%, 74.5%)
CIE-LAB	lab(11.77, 12.24, -24.56)
CIE-LCH	lch(11.77, 27.44, 296.50°)
OKLab	oklab(24.42% 0.0093 -0.0701)
OKLCH	oklch(24.42% 0.071 277.5)
XYZ	xyz(1.7467, 1.3721, 5.1728)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B41 #413F19

analogous

#192F41 #191B41 #2B1941

triadic

#191B41 #41191B #1B4119

tetradic

#191B41 #41192F #413F19 #19412B

square

#191B41 #41192F #413F19 #19412B

split-complementary

#191B41 #412B19 #2F4119

monochromatic

#090916 #090916 #191B41 #2A2D6D #3B4099

Accessibility & contrast

On white

16.48

#191B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#191B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B41

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B41	#FFFFFF	#000000	##FFFFFF
##191B41	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072142

Deuteranopia (green-blind)

#031D40

Tritanopia (blue-blind)

#06242B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #191b41;
/* rgb */ color: rgb(25, 27, 65);
/* oklch */ color: oklch(24.4% 0.071 277.5);

Tailwind

colors: {
  custom: {
    50: '#5a5776',
    500: '#191b41',
    950: '#000000',
  },
}

SCSS

$custom: #191b41;
$custom-light: #5a5776;
$custom-dark: #000000;

JSON

{
  "hex": "#191b41",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 65
  },
  "hsl": {
    "h": 237,
    "s": 44.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.2442,
    "c": 0.07076,
    "h": 277.5
  },
  "luminance": 0.01372
}

Semantic roles & 50–950 ramp

primary

#191B41

secondary

#77743F

accent

#CE54D4

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #191B41

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

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