#3729AD#3729AD

#3729AD is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.8% C 0.197 H 277.3°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX#3729AD
RGBrgb(55, 41, 173)
HSLhsl(246, 62%, 42%)
HSVhsv(246, 76%, 68%)
CMYKcmyk(68.2%, 76.3%, 0%, 32.2%)
CIE-LABlab(27.88, 46.17, -67.64)
CIE-LCHlch(27.88, 81.89, 304.32°)
OKLaboklab(39.85% 0.0252 -0.1954)
OKLCHoklch(39.85% 0.197 277.3)
XYZxyz(9.9089, 5.4144, 40.0499)
Luminance0.0541 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3729AD #9FAD29
analogous
#295DAD #3729AD #7929AD
triadic
#3729AD #AD3729 #29AD37
tetradic
#3729AD #AD295D #9FAD29 #29AD79
square
#3729AD #AD295D #9FAD29 #29AD79
split-complementary
#3729AD #AD7929 #5DAD29
monochromatic
#18124A #271D7C #3729AD #5141D2 #7E73DE

Accessibility & contrast

On white

10.08
#3729AD on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.08
#3729AD on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3729AD
10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3729AD#FFFFFF#000000##FFFFFF
##3729AD1.0010.082.0810.08
#FFFFFF10.081.0021.001.00
#0000002.0821.001.0021.00
##FFFFFF10.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0047B1
Deuteranopia (green-blind)
#003CAB
Tritanopia (blue-blind)
#005069
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #3729ad;
/* rgb */ color: rgb(55, 41, 173);
/* oklch */ color: oklch(39.8% 0.197 277.3);
Tailwind
colors: {
  custom: {
    50: '#7f66c7',
    500: '#3729ad',
    950: '#000000',
  },
}
SCSS
$custom: #3729ad;
$custom-light: #7f66c7;
$custom-dark: #000000;
JSON
{
  "hex": "#3729ad",
  "rgb": {
    "r": 55,
    "g": 41,
    "b": 173
  },
  "hsl": {
    "h": 246.364,
    "s": 61.682,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39848,
    "c": 0.19704,
    "h": 277.3
  },
  "luminance": 0.05415
}

Semantic roles & 50–950 ramp

primary
#3729AD
secondary
#BCC56D
accent
#E543D4
background
#F8F6FC
surface
#F0EBF8
border
#CBC6D1
text
#0B0613
muted
#7C7A82

Preview Lab

Preview with #3729AD

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

Preview Lab → · Contrast checker → · Palette generator →

#3729AD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva