#3723B3#3723B3

#3723B3 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.8% C 0.209 H 277.3°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX#3723B3
RGBrgb(55, 35, 179)
HSLhsl(248, 67%, 42%)
HSVhsv(248, 80%, 70%)
CMYKcmyk(69.3%, 80.4%, 0%, 29.8%)
CIE-LABlab(27.48, 51.03, -71.89)
CIE-LCHlch(27.48, 88.16, 305.37°)
OKLaboklab(39.76% 0.0266 -0.2077)
OKLCHoklch(39.76% 0.209 277.3)
XYZxyz(10.3106, 5.2680, 43.1126)
Luminance0.0527 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3723B3 #9FB323
analogous
#2357B3 #3723B3 #7F23B3
triadic
#3723B3 #B33723 #23B337
tetradic
#3723B3 #B32357 #9FB323 #23B37F
square
#3723B3 #B32357 #9FB323 #23B37F
split-complementary
#3723B3 #B37F23 #57B323
monochromatic
#180F4D #271980 #3723B3 #513BD9 #7E6EE3

Accessibility & contrast

On white

10.22
#3723B3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.05
#3723B3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723B3
10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3723B3#FFFFFF#000000##FFFFFF
##3723B31.0010.222.0510.22
#FFFFFF10.221.0021.001.00
#0000002.0521.001.0021.00
##FFFFFF10.221.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0047B7
Deuteranopia (green-blind)
#003BB1
Tritanopia (blue-blind)
#004F6C
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #3723b3;
/* rgb */ color: rgb(55, 35, 179);
/* oklch */ color: oklch(39.8% 0.209 277.3);
Tailwind
colors: {
  custom: {
    50: '#8163cb',
    500: '#3723b3',
    950: '#000000',
  },
}
SCSS
$custom: #3723b3;
$custom-light: #8163cb;
$custom-dark: #000000;
JSON
{
  "hex": "#3723b3",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 179
  },
  "hsl": {
    "h": 248.333,
    "s": 67.29,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39761,
    "c": 0.20941,
    "h": 277.3
  },
  "luminance": 0.05269
}

Semantic roles & 50–950 ramp

primary
#3723B3
secondary
#BCC969
accent
#EA3ED2
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0513
muted
#7D7A82

Preview Lab

Preview with #3723B3

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

Preview Lab → · Contrast checker → · Palette generator →

#3723B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva