#191B4A#191B4A

#191B4A is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.086 H 276.5°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX#191B4A
RGBrgb(25, 27, 74)
HSLhsl(238, 49%, 19%)
HSVhsv(238, 66%, 29%)
CMYKcmyk(66.2%, 63.5%, 0%, 71%)
CIE-LABlab(12.51, 15.80, -29.63)
CIE-LCHlch(12.51, 33.58, 298.06°)
OKLaboklab(25.21% 0.0097 -0.0851)
OKLCHoklch(25.21% 0.086 276.5)
XYZxyz(2.0285, 1.4848, 6.6569)
Luminance0.0149 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#191B4A #4A4819
analogous
#19344A #191B4A #30194A
triadic
#191B4A #4A191B #1B4A19
tetradic
#191B4A #4A1934 #4A4819 #194A30
square
#191B4A #4A1934 #4A4819 #194A30
split-complementary
#191B4A #4A3019 #344A19
monochromatic
#080817 #0A0A1C #191B4A #282C78 #383CA5

Accessibility & contrast

On white

16.19
#191B4A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.30
#191B4A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B4A
16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##191B4A#FFFFFF#000000##FFFFFF
##191B4A1.0016.191.3016.19
#FFFFFF16.191.0021.001.00
#0000001.3021.001.0021.00
##FFFFFF16.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00234C
Deuteranopia (green-blind)
#001F49
Tritanopia (blue-blind)
#00262F
Achromatopsia (no color)
#212121

Design tokens & code

CSS
--color: #191b4a;
/* rgb */ color: rgb(25, 27, 74);
/* oklch */ color: oklch(25.2% 0.086 276.5);
Tailwind
colors: {
  custom: {
    50: '#5c577d',
    500: '#191b4a',
    950: '#000000',
  },
}
SCSS
$custom: #191b4a;
$custom-light: #5c577d;
$custom-dark: #000000;
JSON
{
  "hex": "#191b4a",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 74
  },
  "hsl": {
    "h": 237.551,
    "s": 49.495,
    "l": 19.412
  },
  "oklch": {
    "l": 0.25209,
    "c": 0.08563,
    "h": 276.5
  },
  "luminance": 0.01485
}

Semantic roles & 50–950 ramp

primary
#191B4A
secondary
#807E3E
accent
#D34FD9
background
#F5F5F7
surface
#E9E9EE
border
#C5C5C9
text
#040309
muted
#79787B

Preview Lab

Preview with #191B4A

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

Preview Lab → · Contrast checker → · Palette generator →

#191B4A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva