#191B9E#191B9E

#191B9E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.6% C 0.199 H 269.1°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX#191B9E
RGBrgb(25, 27, 158)
HSLhsl(239, 73%, 36%)
HSVhsv(239, 84%, 62%)
CMYKcmyk(84.2%, 82.9%, 0%, 38%)
CIE-LABlab(21.79, 46.31, -68.69)
CIE-LCHlch(21.79, 82.84, 303.98°)
OKLaboklab(34.59% -0.0031 -0.1989)
OKLCHoklch(34.59% 0.199 269.1)
XYZxyz(6.9623, 3.4583, 32.6417)
Luminance0.0346 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#191B9E #9E9C19
analogous
#195D9E #191B9E #59199E
triadic
#191B9E #9E191B #1B9E19
tetradic
#191B9E #9E195D #9E9C19 #199E59
square
#191B9E #9E195D #9E9C19 #199E59
split-complementary
#191B9E #9E5919 #5D9E19
monochromatic
#080934 #111269 #191B9E #2124D3 #4E51E3

Accessibility & contrast

On white

12.41
#191B9E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.69
#191B9E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B9E
12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##191B9E#FFFFFF#000000##FFFFFF
##191B9E1.0012.411.6912.41
#FFFFFF12.411.0021.001.00
#0000001.6921.001.0021.00
##FFFFFF12.411.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003BA2
Deuteranopia (green-blind)
#002D9C
Tritanopia (blue-blind)
#00455E
Achromatopsia (no color)
#343434

Design tokens & code

CSS
--color: #191b9e;
/* rgb */ color: rgb(25, 27, 158);
/* oklch */ color: oklch(34.6% 0.199 269.1);
Tailwind
colors: {
  custom: {
    50: '#725bbc',
    500: '#191b9e',
    950: '#000000',
  },
}
SCSS
$custom: #191b9e;
$custom-light: #725bbc;
$custom-dark: #000000;
JSON
{
  "hex": "#191b9e",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 158
  },
  "hsl": {
    "h": 239.098,
    "s": 72.678,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3459,
    "c": 0.19894,
    "h": 269.1
  },
  "luminance": 0.03459
}

Semantic roles & 50–950 ramp

primary
#191B9E
secondary
#C5C34E
accent
#ED38EF
background
#F7F5FB
surface
#EEE9F7
border
#C9C5D0
text
#0A0412
muted
#7C7981

Preview Lab

Preview with #191B9E

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

Preview Lab → · Contrast checker → · Palette generator →

#191B9E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva