#3745BE#3745BE

#3745BE is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.9% C 0.188 H 271.6°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX#3745BE
RGBrgb(55, 69, 190)
HSLhsl(234, 55%, 48%)
HSVhsv(234, 71%, 75%)
CMYKcmyk(71.1%, 63.7%, 0%, 25.5%)
CIE-LABlab(35.57, 35.31, -65.10)
CIE-LCHlch(35.57, 74.06, 298.48°)
OKLaboklab(45.87% 0.0052 -0.188)
OKLCHoklch(45.87% 0.188 271.6)
XYZxyz(12.9948, 8.7849, 49.7160)
Luminance0.0879 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3745BE #BEB037
analogous
#3788BE #3745BE #6D37BE
triadic
#3745BE #BE3745 #45BE37
tetradic
#3745BE #BE3788 #BEB037 #37BE6D
square
#3745BE #BE3788 #BEB037 #37BE6D
split-complementary
#3745BE #BE6D37 #88BE37
monochromatic
#1C235F #29348F #3745BE #616DD1 #9099DF

Accessibility & contrast

On white

7.62
#3745BE on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.76
#3745BE on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745BE
7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3745BE#FFFFFF#000000##FFFFFF
##3745BE1.007.622.767.62
#FFFFFF7.621.0021.001.00
#0000002.7621.001.0021.00
##FFFFFF7.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005AC2
Deuteranopia (green-blind)
#004DBC
Tritanopia (blue-blind)
#00647B
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #3745be;
/* rgb */ color: rgb(55, 69, 190);
/* oklch */ color: oklch(45.9% 0.188 271.6);
Tailwind
colors: {
  custom: {
    50: '#8078d3',
    500: '#3745be',
    950: '#000000',
  },
}
SCSS
$custom: #3745be;
$custom-light: #8078d3;
$custom-dark: #000000;
JSON
{
  "hex": "#3745be",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 190
  },
  "hsl": {
    "h": 233.778,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45866,
    "c": 0.1881,
    "h": 271.6
  },
  "luminance": 0.08786
}

Semantic roles & 50–950 ramp

primary
#3745BE
secondary
#CAC387
accent
#CF49DE
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0914
muted
#7D7B83

Preview Lab

Preview with #3745BE

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

Preview Lab → · Contrast checker → · Palette generator →

#3745BE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva