#3784CC#3784CC

#3784CC is a mid, vivid cyan. Relative luminance 0.217; OKLCH L 60.0% C 0.133 H 249.8°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX#3784CC
RGBrgb(55, 132, 204)
HSLhsl(209, 59%, 51%)
HSVhsv(209, 73%, 80%)
CMYKcmyk(73%, 35.3%, 0%, 20%)
CIE-LABlab(53.68, 0.60, -44.02)
CIE-LCHlch(53.68, 44.03, 270.78°)
OKLaboklab(59.99% -0.0461 -0.1252)
OKLCHoklch(59.99% 0.133 249.8)
XYZxyz(20.7218, 21.6721, 60.2061)
Luminance0.2167 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3784CC #CC7F37
analogous
#37CCC9 #3784CC #3739CC
triadic
#3784CC #CC3784 #84CC37
tetradic
#3784CC #C937CC #CC7F37 #39CC37
square
#3784CC #C937CC #CC7F37 #39CC37
split-complementary
#3784CC #CC3739 #CCC937
monochromatic
#1C466D #28659E #3784CC #68A2D8 #99C0E5

Accessibility & contrast

On white

3.94
#3784CC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.33
#3784CC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784CC
5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3784CC#FFFFFF#000000##000000
##3784CC1.003.945.335.33
#FFFFFF3.941.0021.0021.00
#0000005.3321.001.001.00
##0000005.3321.001.001.00

Color blindness preview

Protanopia (red-blind)
#6388CF
Deuteranopia (green-blind)
#4D7ACB
Tritanopia (blue-blind)
#00959E
Achromatopsia (no color)
#808080

Design tokens & code

CSS
--color: #3784cc;
/* rgb */ color: rgb(55, 132, 204);
/* oklch */ color: oklch(60.0% 0.133 249.8);
Tailwind
colors: {
  custom: {
    50: '#81a7dc',
    500: '#3784cc',
    950: '#000000',
  },
}
SCSS
$custom: #3784cc;
$custom-light: #81a7dc;
$custom-dark: #000000;
JSON
{
  "hex": "#3784cc",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 204
  },
  "hsl": {
    "h": 208.993,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.59985,
    "c": 0.13337,
    "h": 249.8
  },
  "luminance": 0.21674
}

Semantic roles & 50–950 ramp

primary
#3784CC
secondary
#D0AE8E
accent
#9145E3
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #3784CC

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

Preview Lab → · Contrast checker → · Palette generator →

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