#191B6B#191B6B

#191B6B is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.6% C 0.135 H 272.9°. Best body text is #FFFFFF at 14.89:1 contrast (WCAG AA passes).

Color values

HEX#191B6B
RGBrgb(25, 27, 107)
HSLhsl(239, 62%, 26%)
HSVhsv(239, 77%, 42%)
CMYKcmyk(76.6%, 74.8%, 0%, 58%)
CIE-LABlab(15.76, 28.60, -46.48)
CIE-LCHlch(15.76, 54.58, 301.60°)
OKLaboklab(28.57% 0.0067 -0.1345)
OKLCHoklch(28.57% 0.135 272.9)
XYZxyz(3.4458, 2.0517, 14.1215)
Luminance0.0205 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#191B6B #6B6919
analogous
#19446B #191B6B #40196B
triadic
#191B6B #6B191B #1B6B19
tetradic
#191B6B #6B1944 #6B6919 #196B40
square
#191B6B #6B1944 #6B6919 #196B40
split-complementary
#191B6B #6B4019 #446B19
monochromatic
#060619 #0D0E39 #191B6B #25289D #3034CE

Accessibility & contrast

On white

14.89
#191B6B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.41
#191B6B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B6B
14.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##191B6B#FFFFFF#000000##FFFFFF
##191B6B1.0014.891.4114.89
#FFFFFF14.891.0021.001.00
#0000001.4121.001.0021.00
##FFFFFF14.891.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002B6D
Deuteranopia (green-blind)
#00236A
Tritanopia (blue-blind)
#003141
Achromatopsia (no color)
#272727

Design tokens & code

CSS
--color: #191b6b;
/* rgb */ color: rgb(25, 27, 107);
/* oklch */ color: oklch(28.6% 0.135 272.9);
Tailwind
colors: {
  custom: {
    50: '#645896',
    500: '#191b6b',
    950: '#000000',
  },
}
SCSS
$custom: #191b6b;
$custom-light: #645896;
$custom-dark: #000000;
JSON
{
  "hex": "#191b6b",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 107
  },
  "hsl": {
    "h": 238.537,
    "s": 62.121,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28573,
    "c": 0.13464,
    "h": 272.9
  },
  "luminance": 0.02052
}

Semantic roles & 50–950 ramp

primary
#191B6B
secondary
#A19E3F
accent
#E143E5
background
#F6F5F9
surface
#EBE9F2
border
#C6C5CC
text
#06030D
muted
#7A787E

Preview Lab

Preview with #191B6B

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

Preview Lab → · Contrast checker → · Palette generator →

#191B6B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva