#3746BB#3746BB

#3746BB is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.8% C 0.183 H 271.4°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX#3746BB
RGBrgb(55, 70, 187)
HSLhsl(233, 55%, 47%)
HSVhsv(233, 71%, 73%)
CMYKcmyk(70.6%, 62.6%, 0%, 26.7%)
CIE-LABlab(35.56, 33.61, -63.36)
CIE-LCHlch(35.56, 71.72, 297.95°)
OKLaboklab(45.78% 0.0046 -0.1829)
OKLCHoklch(45.78% 0.183 271.4)
XYZxyz(12.7323, 8.7791, 48.0276)
Luminance0.0878 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3746BB #BBAC37
analogous
#3788BB #3746BB #6A37BB
triadic
#3746BB #BB3746 #46BB37
tetradic
#3746BB #BB3788 #BBAC37 #37BB6A
square
#3746BB #BB3788 #BBAC37 #37BB6A
split-complementary
#3746BB #BB6A37 #88BB37
monochromatic
#1B235C #29348C #3746BB #5F6CD0 #8E98DE

Accessibility & contrast

On white

7.62
#3746BB on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.76
#3746BB on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3746BB
7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3746BB#FFFFFF#000000##FFFFFF
##3746BB1.007.622.767.62
#FFFFFF7.621.0021.001.00
#0000002.7621.001.0021.00
##FFFFFF7.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005ABF
Deuteranopia (green-blind)
#004EB9
Tritanopia (blue-blind)
#00647A
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #3746bb;
/* rgb */ color: rgb(55, 70, 187);
/* oklch */ color: oklch(45.8% 0.183 271.4);
Tailwind
colors: {
  custom: {
    50: '#7f79d0',
    500: '#3746bb',
    950: '#000000',
  },
}
SCSS
$custom: #3746bb;
$custom-light: #7f79d0;
$custom-dark: #000000;
JSON
{
  "hex": "#3746bb",
  "rgb": {
    "r": 55,
    "g": 70,
    "b": 187
  },
  "hsl": {
    "h": 233.182,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.45779,
    "c": 0.18297,
    "h": 271.4
  },
  "luminance": 0.0878
}

Semantic roles & 50–950 ramp

primary
#3746BB
secondary
#C9C185
accent
#CD4ADE
background
#F8F7FC
surface
#F0EDF9
border
#CBC8D2
text
#0B0914
muted
#7C7B82

Preview Lab

Preview with #3746BB

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

Preview Lab → · Contrast checker → · Palette generator →

#3746BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva