#3732B1#3732B1

#3732B1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.5% C 0.193 H 275.7°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX#3732B1
RGBrgb(55, 50, 177)
HSLhsl(242, 56%, 45%)
HSVhsv(242, 72%, 69%)
CMYKcmyk(68.9%, 71.8%, 0%, 30.6%)
CIE-LABlab(30.08, 42.44, -66.42)
CIE-LCHlch(30.08, 78.82, 302.58°)
OKLaboklab(41.52% 0.0191 -0.1919)
OKLCHoklch(41.52% 0.193 275.7)
XYZxyz(10.6494, 6.2668, 42.2348)
Luminance0.0627 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3732B1 #ACB132
analogous
#326DB1 #3732B1 #7732B1
triadic
#3732B1 #B13732 #32B137
tetradic
#3732B1 #B1326D #ACB132 #32B177
square
#3732B1 #B1326D #ACB132 #32B177
split-complementary
#3732B1 #B17732 #6DB132
monochromatic
#191752 #282581 #3732B1 #5752CE #8582DC

Accessibility & contrast

On white

9.32
#3732B1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.25
#3732B1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3732B1
9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3732B1#FFFFFF#000000##FFFFFF
##3732B11.009.322.259.32
#FFFFFF9.321.0021.001.00
#0000002.2521.001.0021.00
##FFFFFF9.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004CB5
Deuteranopia (green-blind)
#0041AF
Tritanopia (blue-blind)
#00556E
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #3732b1;
/* rgb */ color: rgb(55, 50, 177);
/* oklch */ color: oklch(41.5% 0.193 275.7);
Tailwind
colors: {
  custom: {
    50: '#7f6bc9',
    500: '#3732b1',
    950: '#000000',
  },
}
SCSS
$custom: #3732b1;
$custom-light: #7f6bc9;
$custom-dark: #000000;
JSON
{
  "hex": "#3732b1",
  "rgb": {
    "r": 55,
    "g": 50,
    "b": 177
  },
  "hsl": {
    "h": 242.362,
    "s": 55.947,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41524,
    "c": 0.19288,
    "h": 275.7
  },
  "luminance": 0.06268
}

Semantic roles & 50–950 ramp

primary
#3732B1
secondary
#C2C57A
accent
#DF49D9
background
#F8F6FC
surface
#F0EBF8
border
#CBC6D1
text
#0B0713
muted
#7C7A82

Preview Lab

Preview with #3732B1

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

Preview Lab → · Contrast checker → · Palette generator →

#3732B1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva