#3784BD#3784BD

#3784BD is a mid, moderate cyan. Relative luminance 0.210; OKLCH L 59.2% C 0.115 H 244.1°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX#3784BD
RGBrgb(55, 132, 189)
HSLhsl(206, 55%, 48%)
HSVhsv(206, 71%, 74%)
CMYKcmyk(70.9%, 30.2%, 0%, 25.9%)
CIE-LABlab(52.94, -4.74, -36.65)
CIE-LCHlch(52.94, 36.96, 262.64°)
OKLaboklab(59.16% -0.0504 -0.1037)
OKLCHoklch(59.16% 0.115 244.1)
XYZxyz(19.0086, 20.9868, 51.1833)
Luminance0.2099 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3784BD #BD7037
analogous
#37BDB3 #3784BD #3741BD
triadic
#3784BD #BD3784 #84BD37
tetradic
#3784BD #B337BD #BD7037 #41BD37
square
#3784BD #B337BD #BD7037 #41BD37
split-complementary
#3784BD #BD3741 #BDB337
monochromatic
#1B425E #29638E #3784BD #60A1D1 #90BDDF

Accessibility & contrast

On white

4.04
#3784BD on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.20
#3784BD on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784BD
5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3784BD#FFFFFF#000000##000000
##3784BD1.004.045.205.20
#FFFFFF4.041.0021.0021.00
#0000005.2021.001.001.00
##0000005.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A85C0
Deuteranopia (green-blind)
#5879BC
Tritanopia (blue-blind)
#009298
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #3784bd;
/* rgb */ color: rgb(55, 132, 189);
/* oklch */ color: oklch(59.2% 0.115 244.1);
Tailwind
colors: {
  custom: {
    50: '#7ea7d1',
    500: '#3784bd',
    950: '#000000',
  },
}
SCSS
$custom: #3784bd;
$custom-light: #7ea7d1;
$custom-dark: #000000;
JSON
{
  "hex": "#3784bd",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 189
  },
  "hsl": {
    "h": 205.522,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.59157,
    "c": 0.11526,
    "h": 244.1
  },
  "luminance": 0.20989
}

Semantic roles & 50–950 ramp

primary
#3784BD
secondary
#C9A386
accent
#894ADE
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B0F14
muted
#7C7F82

Preview Lab

Preview with #3784BD

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

Preview Lab → · Contrast checker → · Palette generator →

#3784BD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva