#3727A4#3727A4

#3727A4 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.6% C 0.188 H 278.7°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX#3727A4
RGBrgb(55, 39, 164)
HSLhsl(248, 62%, 40%)
HSVhsv(248, 76%, 64%)
CMYKcmyk(66.5%, 76.2%, 0%, 35.7%)
CIE-LABlab(26.57, 44.40, -64.38)
CIE-LCHlch(26.57, 78.20, 304.59°)
OKLaboklab(38.64% 0.0285 -0.1859)
OKLCHoklch(38.64% 0.188 278.7)
XYZxyz(8.9998, 4.9429, 35.5946)
Luminance0.0494 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3727A4 #94A427
analogous
#2756A4 #3727A4 #7627A4
triadic
#3727A4 #A43727 #27A437
tetradic
#3727A4 #A42756 #94A427 #27A476
square
#3727A4 #A42756 #94A427 #27A476
split-complementary
#3727A4 #A47627 #56A427
monochromatic
#160F41 #261B73 #3727A4 #4C38D0 #786ADC

Accessibility & contrast

On white

10.56
#3727A4 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.99
#3727A4 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727A4
10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3727A4#FFFFFF#000000##FFFFFF
##3727A41.0010.561.9910.56
#FFFFFF10.561.0021.001.00
#0000001.9921.001.0021.00
##FFFFFF10.561.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0044A8
Deuteranopia (green-blind)
#003AA2
Tritanopia (blue-blind)
#004B64
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #3727a4;
/* rgb */ color: rgb(55, 39, 164);
/* oklch */ color: oklch(38.6% 0.188 278.7);
Tailwind
colors: {
  custom: {
    50: '#7d64c0',
    500: '#3727a4',
    950: '#000000',
  },
}
SCSS
$custom: #3727a4;
$custom-light: #7d64c0;
$custom-dark: #000000;
JSON
{
  "hex": "#3727a4",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 164
  },
  "hsl": {
    "h": 247.68,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38644,
    "c": 0.18807,
    "h": 278.7
  },
  "luminance": 0.04944
}

Semantic roles & 50–950 ramp

primary
#3727A4
secondary
#B6C265
accent
#E543D0
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0512
muted
#7C7A81

Preview Lab

Preview with #3727A4

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

Preview Lab → · Contrast checker → · Palette generator →

#3727A4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva