#191B73#191B73

#191B73 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.145 H 272.1°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#191B73
RGB	rgb(25, 27, 115)
HSL	hsl(239, 64%, 27%)
HSV	hsv(239, 78%, 45%)
CMYK	cmyk(78.3%, 76.5%, 0%, 54.9%)
CIE-LAB	lab(16.64, 31.56, -50.23)
CIE-LCH	lch(16.64, 59.32, 302.15°)
OKLab	oklab(29.47% 0.0054 -0.1454)
OKLCH	oklch(29.47% 0.145 272.1)
XYZ	xyz(3.8863, 2.2279, 16.4415)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B73 #737119

analogous

#194873 #191B73 #441973

triadic

#191B73 #73191B #1B7319

tetradic

#191B73 #731948 #737119 #197344

square

#191B73 #731948 #737119 #197344

split-complementary

#191B73 #734419 #487319

monochromatic

#050619 #0E0F41 #191B73 #2427A5 #3437D3

Accessibility & contrast

On white

14.53

#191B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#191B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B73

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B73	#FFFFFF	#000000	##FFFFFF
##191B73	1.00	14.53	1.45	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D76

Deuteranopia (green-blind)

#002571

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #191b73;
/* rgb */ color: rgb(25, 27, 115);
/* oklch */ color: oklch(29.5% 0.145 272.1);

Tailwind

colors: {
  custom: {
    50: '#66589c',
    500: '#191b73',
    950: '#000000',
  },
}

SCSS

$custom: #191b73;
$custom-light: #66589c;
$custom-dark: #000000;

JSON

{
  "hex": "#191b73",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 115
  },
  "hsl": {
    "h": 238.667,
    "s": 64.286,
    "l": 27.451
  },
  "oklch": {
    "l": 0.2947,
    "c": 0.14547,
    "h": 272.1
  },
  "luminance": 0.02228
}

Semantic roles & 50–950 ramp

primary

#191B73

secondary

#A8A640

accent

#E441E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #191B73

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

Preview Lab → · Contrast checker → · Palette generator →