#191B45#191B45

#191B45 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.077 H 277.1°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#191B45
RGB	rgb(25, 27, 69)
HSL	hsl(237, 47%, 18%)
HSV	hsv(237, 64%, 27%)
CMYK	cmyk(63.8%, 60.9%, 0%, 72.9%)
CIE-LAB	lab(12.09, 13.82, -26.84)
CIE-LCH	lch(12.09, 30.19, 297.24°)
OKLab	oklab(24.76% 0.0096 -0.0769)
OKLCH	oklch(24.76% 0.077 277.1)
XYZ	xyz(1.8667, 1.4201, 5.8048)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B45 #454319

analogous

#193145 #191B45 #2D1945

triadic

#191B45 #45191B #1B4519

tetradic

#191B45 #451931 #454319 #19452D

square

#191B45 #451931 #454319 #19452D

split-complementary

#191B45 #452D19 #314519

monochromatic

#080916 #090918 #191B45 #292D72 #3A3E9F

Accessibility & contrast

On white

16.36

#191B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#191B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B45

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B45	#FFFFFF	#000000	##FFFFFF
##191B45	1.00	16.36	1.28	16.36
#FFFFFF	16.36	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032246

Deuteranopia (green-blind)

#001E44

Tritanopia (blue-blind)

#02252C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #191b45;
/* rgb */ color: rgb(25, 27, 69);
/* oklch */ color: oklch(24.8% 0.077 277.1);

Tailwind

colors: {
  custom: {
    50: '#5b5779',
    500: '#191b45',
    950: '#000000',
  },
}

SCSS

$custom: #191b45;
$custom-light: #5b5779;
$custom-dark: #000000;

JSON

{
  "hex": "#191b45",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 69
  },
  "hsl": {
    "h": 237.273,
    "s": 46.809,
    "l": 18.431
  },
  "oklch": {
    "l": 0.24762,
    "c": 0.07746,
    "h": 277.1
  },
  "luminance": 0.0142
}

Semantic roles & 50–950 ramp

primary

#191B45

secondary

#7B793E

accent

#D051D6

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #191B45

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

Preview Lab → · Contrast checker → · Palette generator →