#3788CA#3788CA

#3788CA is a mid, vivid cyan. Relative luminance 0.227; OKLCH L 60.8% C 0.127 H 246.7°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX#3788CA
RGBrgb(55, 136, 202)
HSLhsl(207, 58%, 50%)
HSVhsv(207, 73%, 79%)
CMYKcmyk(72.8%, 32.7%, 0%, 20.8%)
CIE-LABlab(54.74, -2.48, -41.20)
CIE-LCHlch(54.74, 41.28, 266.55°)
OKLaboklab(60.79% -0.0504 -0.1169)
OKLCHoklch(60.79% 0.127 246.7)
XYZxyz(21.0363, 22.6824, 59.1351)
Luminance0.2268 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3788CA #CA7937
analogous
#37CAC3 #3788CA #373ECA
triadic
#3788CA #CA3788 #88CA37
tetradic
#3788CA #C337CA #CA7937 #3ECA37
square
#3788CA #C337CA #CA7937 #3ECA37
split-complementary
#3788CA #CA373E #CAC337
monochromatic
#1C476A #29689B #3788CA #67A5D7 #98C2E4

Accessibility & contrast

On white

3.79
#3788CA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.54
#3788CA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788CA
5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3788CA#FFFFFF#000000##000000
##3788CA1.003.795.545.54
#FFFFFF3.791.0021.0021.00
#0000005.5421.001.001.00
##0000005.5421.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A8BCD
Deuteranopia (green-blind)
#557DC9
Tritanopia (blue-blind)
#0098A0
Achromatopsia (no color)
#838383

Design tokens & code

CSS
--color: #3788ca;
/* rgb */ color: rgb(55, 136, 202);
/* oklch */ color: oklch(60.8% 0.127 246.7);
Tailwind
colors: {
  custom: {
    50: '#80aada',
    500: '#3788ca',
    950: '#000000',
  },
}
SCSS
$custom: #3788ca;
$custom-light: #80aada;
$custom-dark: #000000;
JSON
{
  "hex": "#3788ca",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 202
  },
  "hsl": {
    "h": 206.939,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.6079,
    "c": 0.12728,
    "h": 246.7
  },
  "luminance": 0.22685
}

Semantic roles & 50–950 ramp

primary
#3788CA
secondary
#CFAB8E
accent
#8C46E1
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3788CA

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

Preview Lab → · Contrast checker → · Palette generator →

#3788CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva