#3724B3#3724B3

#3724B3 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.9% C 0.209 H 277.2°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX#3724B3
RGBrgb(55, 36, 179)
HSLhsl(248, 67%, 42%)
HSVhsv(248, 80%, 70%)
CMYKcmyk(69.3%, 79.9%, 0%, 29.8%)
CIE-LABlab(27.65, 50.55, -71.62)
CIE-LCHlch(27.65, 87.66, 305.22°)
OKLaboklab(39.87% 0.0261 -0.2069)
OKLCHoklch(39.87% 0.209 277.2)
XYZxyz(10.3405, 5.3277, 43.1225)
Luminance0.0533 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3724B3 #A0B324
analogous
#2459B3 #3724B3 #7F24B3
triadic
#3724B3 #B33724 #24B337
tetradic
#3724B3 #B32459 #A0B324 #24B37F
square
#3724B3 #B32459 #A0B324 #24B37F
split-complementary
#3724B3 #B37F24 #59B324
monochromatic
#18104D #271A80 #3724B3 #513CD8 #7F6FE2

Accessibility & contrast

On white

10.17
#3724B3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.07
#3724B3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3724B3
10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3724B3#FFFFFF#000000##FFFFFF
##3724B31.0010.172.0710.17
#FFFFFF10.171.0021.001.00
#0000002.0721.001.0021.00
##FFFFFF10.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0047B7
Deuteranopia (green-blind)
#003BB1
Tritanopia (blue-blind)
#00506C
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #3724b3;
/* rgb */ color: rgb(55, 36, 179);
/* oklch */ color: oklch(39.9% 0.209 277.2);
Tailwind
colors: {
  custom: {
    50: '#8163cb',
    500: '#3724b3',
    950: '#000000',
  },
}
SCSS
$custom: #3724b3;
$custom-light: #8163cb;
$custom-dark: #000000;
JSON
{
  "hex": "#3724b3",
  "rgb": {
    "r": 55,
    "g": 36,
    "b": 179
  },
  "hsl": {
    "h": 247.972,
    "s": 66.512,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39874,
    "c": 0.20859,
    "h": 277.2
  },
  "luminance": 0.05329
}

Semantic roles & 50–950 ramp

primary
#3724B3
secondary
#BCC96A
accent
#E93ED3
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0513
muted
#7D7A82

Preview Lab

Preview with #3724B3

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

Preview Lab → · Contrast checker → · Palette generator →

#3724B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva