#191B74#191B74

#191B74 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.6% C 0.147 H 272.0°. Best body text is #FFFFFF at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#191B74
RGB	rgb(25, 27, 116)
HSL	hsl(239, 65%, 28%)
HSV	hsv(239, 78%, 45%)
CMYK	cmyk(78.4%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(16.75, 31.93, -50.68)
CIE-LCH	lch(16.75, 59.90, 302.21°)
OKLab	oklab(29.58% 0.0052 -0.1467)
OKLCH	oklch(29.58% 0.147 272)
XYZ	xyz(3.9442, 2.2511, 16.7462)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B74 #747219

analogous

#194974 #191B74 #441974

triadic

#191B74 #74191B #1B7419

tetradic

#191B74 #741949 #747219 #197444

square

#191B74 #741949 #747219 #197444

split-complementary

#191B74 #744419 #497419

monochromatic

#050619 #0E0F42 #191B74 #2427A6 #3438D3

Accessibility & contrast

On white

14.48

#191B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#191B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B74

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B74	#FFFFFF	#000000	##FFFFFF
##191B74	1.00	14.48	1.45	14.48
#FFFFFF	14.48	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E77

Deuteranopia (green-blind)

#002572

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #191b74;
/* rgb */ color: rgb(25, 27, 116);
/* oklch */ color: oklch(29.6% 0.147 272.0);

Tailwind

colors: {
  custom: {
    50: '#67589d',
    500: '#191b74',
    950: '#000000',
  },
}

SCSS

$custom: #191b74;
$custom-light: #67589d;
$custom-dark: #000000;

JSON

{
  "hex": "#191b74",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 238.681,
    "s": 64.539,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29584,
    "c": 0.14679,
    "h": 272
  },
  "luminance": 0.02251
}

Semantic roles & 50–950 ramp

primary

#191B74

secondary

#A9A740

accent

#E440E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #191B74

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

Preview Lab → · Contrast checker → · Palette generator →