#3727AB#3727AB

#3727AB is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.4% C 0.197 H 277.8°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX#3727AB
RGBrgb(55, 39, 171)
HSLhsl(247, 63%, 41%)
HSVhsv(247, 77%, 67%)
CMYKcmyk(67.8%, 77.2%, 0%, 32.9%)
CIE-LABlab(27.30, 46.59, -67.39)
CIE-LCHlch(27.30, 81.93, 304.66°)
OKLaboklab(39.38% 0.0267 -0.1947)
OKLCHoklch(39.38% 0.197 277.8)
XYZxyz(9.6494, 5.2027, 39.0159)
Luminance0.0520 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3727AB #9BAB27
analogous
#2759AB #3727AB #7927AB
triadic
#3727AB #AB3727 #27AB37
tetradic
#3727AB #AB2759 #9BAB27 #27AB79
square
#3727AB #AB2759 #9BAB27 #27AB79
split-complementary
#3727AB #AB7927 #59AB27
monochromatic
#171047 #271C79 #3727AB #4F3DD3 #7C6EDE

Accessibility & contrast

On white

10.29
#3727AB on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#3727AB on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727AB
10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3727AB#FFFFFF#000000##FFFFFF
##3727AB1.0010.292.0410.29
#FFFFFF10.291.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0046AF
Deuteranopia (green-blind)
#003BA9
Tritanopia (blue-blind)
#004E68
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #3727ab;
/* rgb */ color: rgb(55, 39, 171);
/* oklch */ color: oklch(39.4% 0.197 277.8);
Tailwind
colors: {
  custom: {
    50: '#7f64c5',
    500: '#3727ab',
    950: '#000000',
  },
}
SCSS
$custom: #3727ab;
$custom-light: #7f64c5;
$custom-dark: #000000;
JSON
{
  "hex": "#3727ab",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 171
  },
  "hsl": {
    "h": 247.273,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39378,
    "c": 0.19652,
    "h": 277.8
  },
  "luminance": 0.05204
}

Semantic roles & 50–950 ramp

primary
#3727AB
secondary
#BAC569
accent
#E642D2
background
#F8F6FC
surface
#F0EBF8
border
#CBC6D1
text
#0B0613
muted
#7C7A82

Preview Lab

Preview with #3727AB

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

Preview Lab → · Contrast checker → · Palette generator →

#3727AB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva