#3775E0#3775E0

#3775E0 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.0% C 0.176 H 260.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#3775E0
RGBrgb(55, 117, 224)
HSLhsl(218, 73%, 55%)
HSVhsv(218, 75%, 88%)
CMYKcmyk(75.4%, 47.8%, 0%, 12.2%)
CIE-LABlab(50.59, 17.10, -60.27)
CIE-LCHlch(50.59, 62.64, 285.84°)
OKLaboklab(57.96% -0.0289 -0.1731)
OKLCHoklch(57.96% 0.176 260.5)
XYZxyz(21.3865, 18.9142, 73.0302)
Luminance0.1892 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3775E0 #E0A237
analogous
#37CAE0 #3775E0 #4E37E0
triadic
#3775E0 #E03775 #75E037
tetradic
#3775E0 #E037CA #E0A237 #37E04E
square
#3775E0 #E037CA #E0A237 #37E04E
split-complementary
#3775E0 #E04E37 #CAE037
monochromatic
#153F88 #1D58BD #3775E0 #6C9AE8 #A1BEF0

Accessibility & contrast

On white

4.39
#3775E0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.78
#3775E0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3775E0
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3775E0#FFFFFF#000000##000000
##3775E01.004.394.784.78
#FFFFFF4.391.0021.0021.00
#0000004.7821.001.001.00
##0000004.7821.001.001.00

Color blindness preview

Protanopia (red-blind)
#3981E4
Deuteranopia (green-blind)
#0071DE
Tritanopia (blue-blind)
#008FA0
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #3775e0;
/* rgb */ color: rgb(55, 117, 224);
/* oklch */ color: oklch(58.0% 0.176 260.5);
Tailwind
colors: {
  custom: {
    50: '#859cea',
    500: '#3775e0',
    950: '#000000',
  },
}
SCSS
$custom: #3775e0;
$custom-light: #859cea;
$custom-dark: #000000;
JSON
{
  "hex": "#3775e0",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 224
  },
  "hsl": {
    "h": 217.988,
    "s": 73.16,
    "l": 54.706
  },
  "oklch": {
    "l": 0.57957,
    "c": 0.17551,
    "h": 260.5
  },
  "luminance": 0.18917
}

Semantic roles & 50–950 ramp

primary
#3775E0
secondary
#DDC396
accent
#AC38F0
background
#F8F9FE
surface
#F0F2FD
border
#CBCCD5
text
#0D0E16
muted
#7D7E84

Preview Lab

Preview with #3775E0

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

Preview Lab → · Contrast checker → · Palette generator →

#3775E0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva