#3723B4#3723B4

#3723B4 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.9% C 0.211 H 277.2°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX#3723B4
RGBrgb(55, 35, 180)
HSLhsl(248, 67%, 42%)
HSVhsv(248, 81%, 71%)
CMYKcmyk(69.4%, 80.6%, 0%, 29.4%)
CIE-LABlab(27.60, 51.33, -72.30)
CIE-LCHlch(27.60, 88.67, 305.37°)
OKLaboklab(39.87% 0.0263 -0.2089)
OKLCHoklch(39.87% 0.211 277.2)
XYZxyz(10.4121, 5.3086, 43.6471)
Luminance0.0531 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3723B4 #A0B423
analogous
#2357B4 #3723B4 #8023B4
triadic
#3723B4 #B43723 #23B437
tetradic
#3723B4 #B42357 #A0B423 #23B480
square
#3723B4 #B42357 #A0B423 #23B480
split-complementary
#3723B4 #B48023 #57B423
monochromatic
#180F4E #271981 #3723B4 #513BD9 #7F6EE3

Accessibility & contrast

On white

10.18
#3723B4 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.06
#3723B4 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723B4
10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3723B4#FFFFFF#000000##FFFFFF
##3723B41.0010.182.0610.18
#FFFFFF10.181.0021.001.00
#0000002.0621.001.0021.00
##FFFFFF10.181.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0047B8
Deuteranopia (green-blind)
#003BB2
Tritanopia (blue-blind)
#00506C
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #3723b4;
/* rgb */ color: rgb(55, 35, 180);
/* oklch */ color: oklch(39.9% 0.211 277.2);
Tailwind
colors: {
  custom: {
    50: '#8163cc',
    500: '#3723b4',
    950: '#000000',
  },
}
SCSS
$custom: #3723b4;
$custom-light: #8163cc;
$custom-dark: #000000;
JSON
{
  "hex": "#3723b4",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 180
  },
  "hsl": {
    "h": 248.276,
    "s": 67.442,
    "l": 42.157
  },
  "oklch": {
    "l": 0.3987,
    "c": 0.21057,
    "h": 277.2
  },
  "luminance": 0.0531
}

Semantic roles & 50–950 ramp

primary
#3723B4
secondary
#BCC969
accent
#EA3DD2
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0514
muted
#7D7A82

Preview Lab

Preview with #3723B4

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

Preview Lab → · Contrast checker → · Palette generator →

#3723B4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva