#3783CA#3783CA

#3783CA is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.6% C 0.132 H 249.7°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX#3783CA
RGBrgb(55, 131, 202)
HSLhsl(209, 58%, 50%)
HSVhsv(209, 73%, 79%)
CMYKcmyk(72.8%, 35.1%, 0%, 20.8%)
CIE-LABlab(53.28, 0.48, -43.51)
CIE-LCHlch(53.28, 43.51, 270.63°)
OKLaboklab(59.64% -0.0457 -0.1237)
OKLCHoklch(59.64% 0.132 249.7)
XYZxyz(20.3485, 21.3068, 58.9059)
Luminance0.2131 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3783CA #CA7E37
analogous
#37CAC8 #3783CA #3739CA
triadic
#3783CA #CA3783 #83CA37
tetradic
#3783CA #C837CA #CA7E37 #39CA37
square
#3783CA #C837CA #CA7E37 #39CA37
split-complementary
#3783CA #CA3739 #CAC837
monochromatic
#1C456A #29649B #3783CA #67A1D7 #98BFE4

Accessibility & contrast

On white

3.99
#3783CA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.26
#3783CA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783CA
5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3783CA#FFFFFF#000000##000000
##3783CA1.003.995.265.26
#FFFFFF3.991.0021.0021.00
#0000005.2621.001.001.00
##0000005.2621.001.001.00

Color blindness preview

Protanopia (red-blind)
#6387CD
Deuteranopia (green-blind)
#4D79C9
Tritanopia (blue-blind)
#00949D
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #3783ca;
/* rgb */ color: rgb(55, 131, 202);
/* oklch */ color: oklch(59.6% 0.132 249.7);
Tailwind
colors: {
  custom: {
    50: '#80a6da',
    500: '#3783ca',
    950: '#000000',
  },
}
SCSS
$custom: #3783ca;
$custom-light: #80a6da;
$custom-dark: #000000;
JSON
{
  "hex": "#3783ca",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 202
  },
  "hsl": {
    "h": 208.98,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.59642,
    "c": 0.13184,
    "h": 249.7
  },
  "luminance": 0.21309
}

Semantic roles & 50–950 ramp

primary
#3783CA
secondary
#CFAD8E
accent
#9146E1
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #3783CA

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

Preview Lab → · Contrast checker → · Palette generator →

#3783CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva