#3787CA#3787CA

#3787CA is a mid, vivid cyan. Relative luminance 0.224; OKLCH L 60.6% C 0.128 H 247.3°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX#3787CA
RGBrgb(55, 135, 202)
HSLhsl(207, 58%, 50%)
HSVhsv(207, 73%, 79%)
CMYKcmyk(72.8%, 33.2%, 0%, 20.8%)
CIE-LABlab(54.45, -1.90, -41.67)
CIE-LCHlch(54.45, 41.71, 267.39°)
OKLaboklab(60.56% -0.0494 -0.1182)
OKLCHoklch(60.56% 0.128 247.3)
XYZxyz(20.8961, 22.4021, 59.0884)
Luminance0.2240 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3787CA #CA7A37
analogous
#37CAC4 #3787CA #373DCA
triadic
#3787CA #CA3787 #87CA37
tetradic
#3787CA #C437CA #CA7A37 #3DCA37
square
#3787CA #C437CA #CA7A37 #3DCA37
split-complementary
#3787CA #CA373D #CAC437
monochromatic
#1C476A #29679B #3787CA #67A4D7 #98C1E4

Accessibility & contrast

On white

3.83
#3787CA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.48
#3787CA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787CA
5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3787CA#FFFFFF#000000##000000
##3787CA1.003.835.485.48
#FFFFFF3.831.0021.0021.00
#0000005.4821.001.001.00
##0000005.4821.001.001.00

Color blindness preview

Protanopia (red-blind)
#688ACD
Deuteranopia (green-blind)
#547CC9
Tritanopia (blue-blind)
#00979F
Achromatopsia (no color)
#828282

Design tokens & code

CSS
--color: #3787ca;
/* rgb */ color: rgb(55, 135, 202);
/* oklch */ color: oklch(60.6% 0.128 247.3);
Tailwind
colors: {
  custom: {
    50: '#80a9da',
    500: '#3787ca',
    950: '#000000',
  },
}
SCSS
$custom: #3787ca;
$custom-light: #80a9da;
$custom-dark: #000000;
JSON
{
  "hex": "#3787ca",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 202
  },
  "hsl": {
    "h": 207.347,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.6056,
    "c": 0.12816,
    "h": 247.3
  },
  "luminance": 0.22404
}

Semantic roles & 50–950 ramp

primary
#3787CA
secondary
#CFAC8E
accent
#8D46E1
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #3787CA

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

Preview Lab → · Contrast checker → · Palette generator →

#3787CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva