#3764CC#3764CC

#3764CC is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.0% C 0.169 H 263.9°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX#3764CC
RGBrgb(55, 100, 204)
HSLhsl(222, 59%, 51%)
HSVhsv(222, 73%, 80%)
CMYKcmyk(73%, 51%, 0%, 20%)
CIE-LABlab(44.64, 20.50, -58.48)
CIE-LCHlch(44.64, 61.97, 289.31°)
OKLaboklab(52.99% -0.0179 -0.1682)
OKLCHoklch(52.99% 0.169 263.9)
XYZxyz(17.0279, 14.2844, 58.9748)
Luminance0.1429 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3764CC #CC9F37
analogous
#37AFCC #3764CC #5437CC
triadic
#3764CC #CC3764 #64CC37
tetradic
#3764CC #CC37AF #CC9F37 #37CC54
square
#3764CC #CC37AF #CC9F37 #37CC54
split-complementary
#3764CC #CC5437 #AFCC37
monochromatic
#1C346D #284C9E #3764CC #688AD8 #99B0E5

Accessibility & contrast

On white

5.44
#3764CC on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.86
#3764CC on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3764CC
5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3764CC#FFFFFF#000000##FFFFFF
##3764CC1.005.443.865.44
#FFFFFF5.441.0021.001.00
#0000003.8621.001.0021.00
##FFFFFF5.441.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2271D0
Deuteranopia (green-blind)
#0063CA
Tritanopia (blue-blind)
#007D8E
Achromatopsia (no color)
#6A6A6A

Design tokens & code

CSS
--color: #3764cc;
/* rgb */ color: rgb(55, 100, 204);
/* oklch */ color: oklch(53.0% 0.169 263.9);
Tailwind
colors: {
  custom: {
    50: '#818fdc',
    500: '#3764cc',
    950: '#000000',
  },
}
SCSS
$custom: #3764cc;
$custom-light: #818fdc;
$custom-dark: #000000;
JSON
{
  "hex": "#3764cc",
  "rgb": {
    "r": 55,
    "g": 100,
    "b": 204
  },
  "hsl": {
    "h": 221.879,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.52991,
    "c": 0.16912,
    "h": 263.9
  },
  "luminance": 0.14286
}

Semantic roles & 50–950 ramp

primary
#3764CC
secondary
#D0BC8E
accent
#B345E3
background
#F8F8FD
surface
#F0F0FB
border
#CBCBD4
text
#0C0C15
muted
#7D7D83

Preview Lab

Preview with #3764CC

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

Preview Lab → · Contrast checker → · Palette generator →

#3764CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva