#3757C4#3757C4

#3757C4 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.8% C 0.174 H 267.3°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX#3757C4
RGBrgb(55, 87, 196)
HSLhsl(226, 56%, 49%)
HSVhsv(226, 72%, 77%)
CMYKcmyk(71.9%, 55.6%, 0%, 23.1%)
CIE-LABlab(40.59, 25.93, -60.41)
CIE-LCHlch(40.59, 65.74, 293.23°)
OKLaboklab(49.75% -0.0082 -0.174)
OKLCHoklch(49.75% 0.174 267.3)
XYZxyz(14.9441, 11.6126, 53.6677)
Luminance0.1161 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3757C4 #C4A437
analogous
#379EC4 #3757C4 #5E37C4
triadic
#3757C4 #C43757 #57C437
tetradic
#3757C4 #C4379E #C4A437 #37C45E
square
#3757C4 #C4379E #C4A437 #37C45E
split-complementary
#3757C4 #C45E37 #9EC437
monochromatic
#1C2D64 #2A4294 #3757C4 #657ED4 #94A6E1

Accessibility & contrast

On white

6.32
#3757C4 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.32
#3757C4 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3757C4
6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3757C4#FFFFFF#000000##FFFFFF
##3757C41.006.323.326.32
#FFFFFF6.321.0021.001.00
#0000003.3221.001.0021.00
##FFFFFF6.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0066C8
Deuteranopia (green-blind)
#0059C2
Tritanopia (blue-blind)
#007285
Achromatopsia (no color)
#606060

Design tokens & code

CSS
--color: #3757c4;
/* rgb */ color: rgb(55, 87, 196);
/* oklch */ color: oklch(49.8% 0.174 267.3);
Tailwind
colors: {
  custom: {
    50: '#8086d7',
    500: '#3757c4',
    950: '#000000',
  },
}
SCSS
$custom: #3757c4;
$custom-light: #8086d7;
$custom-dark: #000000;
JSON
{
  "hex": "#3757c4",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 196
  },
  "hsl": {
    "h": 226.383,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49752,
    "c": 0.17424,
    "h": 267.3
  },
  "luminance": 0.11614
}

Semantic roles & 50–950 ramp

primary
#3757C4
secondary
#CCBD8B
accent
#BD48DF
background
#F8F8FD
surface
#F0EFFA
border
#CBCAD3
text
#0C0B14
muted
#7D7C83

Preview Lab

Preview with #3757C4

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

Preview Lab → · Contrast checker → · Palette generator →

#3757C4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva