#191B42#191B42

#191B42 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.072 H 277.4°. Best body text is #FFFFFF at 16.45:1 contrast (WCAG AA passes).

Color values

HEX	#191B42
RGB	rgb(25, 27, 66)
HSL	hsl(237, 45%, 18%)
HSV	hsv(237, 62%, 26%)
CMYK	cmyk(62.1%, 59.1%, 0%, 74.1%)
CIE-LAB	lab(11.85, 12.64, -25.13)
CIE-LCH	lch(11.85, 28.13, 296.70°)
OKLab	oklab(24.5% 0.0093 -0.0718)
OKLCH	oklch(24.5% 0.072 277.4)
XYZ	xyz(1.7759, 1.3838, 5.3267)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B42 #424019

analogous

#192F42 #191B42 #2B1942

triadic

#191B42 #42191B #1B4219

tetradic

#191B42 #42192F #424019 #19422B

square

#191B42 #42192F #424019 #19422B

split-complementary

#191B42 #422B19 #2F4219

monochromatic

#080916 #080916 #191B42 #2A2D6E #3B3F9B

Accessibility & contrast

On white

16.45

#191B42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#191B42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B42

16.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B42	#FFFFFF	#000000	##FFFFFF
##191B42	1.00	16.45	1.28	16.45
#FFFFFF	16.45	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062143

Deuteranopia (green-blind)

#021E41

Tritanopia (blue-blind)

#05242B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #191b42;
/* rgb */ color: rgb(25, 27, 66);
/* oklch */ color: oklch(24.5% 0.072 277.4);

Tailwind

colors: {
  custom: {
    50: '#5a5777',
    500: '#191b42',
    950: '#000000',
  },
}

SCSS

$custom: #191b42;
$custom-light: #5a5777;
$custom-dark: #000000;

JSON

{
  "hex": "#191b42",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 66
  },
  "hsl": {
    "h": 237.073,
    "s": 45.055,
    "l": 17.843
  },
  "oklch": {
    "l": 0.24504,
    "c": 0.07244,
    "h": 277.4
  },
  "luminance": 0.01384
}

Semantic roles & 50–950 ramp

primary

#191B42

secondary

#78753F

accent

#CE53D5

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #191B42

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

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