#3729C6#3729C6

#3729C6 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.5% C 0.226 H 274.8°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX#3729C6
RGBrgb(55, 41, 198)
HSLhsl(245, 66%, 47%)
HSVhsv(245, 79%, 78%)
CMYKcmyk(72.2%, 79.3%, 0%, 22.4%)
CIE-LABlab(30.58, 53.89, -78.01)
CIE-LCHlch(30.58, 94.81, 304.64°)
OKLaboklab(42.53% 0.0191 -0.2256)
OKLCHoklch(42.53% 0.226 274.8)
XYZxyz(12.5582, 6.4741, 54.0029)
Luminance0.0648 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3729C6 #B8C629
analogous
#296AC6 #3729C6 #8529C6
triadic
#3729C6 #C63729 #29C637
tetradic
#3729C6 #C6296A #B8C629 #29C685
square
#3729C6 #C6296A #B8C629 #29C685
split-complementary
#3729C6 #C68529 #6AC629
monochromatic
#1B1461 #291F93 #3729C6 #5D51DB #8D84E6

Accessibility & contrast

On white

9.15
#3729C6 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.30
#3729C6 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3729C6
9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3729C6#FFFFFF#000000##FFFFFF
##3729C61.009.152.309.15
#FFFFFF9.151.0021.001.00
#0000002.3021.001.0021.00
##FFFFFF9.151.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004FCA
Deuteranopia (green-blind)
#0041C3
Tritanopia (blue-blind)
#005978
Achromatopsia (no color)
#484848

Design tokens & code

CSS
--color: #3729c6;
/* rgb */ color: rgb(55, 41, 198);
/* oklch */ color: oklch(42.5% 0.226 274.8);
Tailwind
colors: {
  custom: {
    50: '#8467d9',
    500: '#3729c6',
    950: '#000000',
  },
}
SCSS
$custom: #3729c6;
$custom-light: #8467d9;
$custom-dark: #000000;
JSON
{
  "hex": "#3729c6",
  "rgb": {
    "r": 55,
    "g": 41,
    "b": 198
  },
  "hsl": {
    "h": 245.35,
    "s": 65.69,
    "l": 46.863
  },
  "oklch": {
    "l": 0.42528,
    "c": 0.22639,
    "h": 274.8
  },
  "luminance": 0.06475
}

Semantic roles & 50–950 ramp

primary
#3729C6
secondary
#C7CF7C
accent
#E93FDA
background
#F9F6FD
surface
#F1EBFB
border
#CBC6D4
text
#0D0615
muted
#7E7A83

Preview Lab

Preview with #3729C6

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

Preview Lab → · Contrast checker → · Palette generator →

#3729C6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva