#3688C8#3688C8

#3688C8 is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 60.7% C 0.125 H 245.7°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX#3688C8
RGBrgb(54, 136, 200)
HSLhsl(206, 57%, 50%)
HSVhsv(206, 73%, 78%)
CMYKcmyk(73%, 32%, 0%, 21.6%)
CIE-LABlab(54.62, -3.33, -40.27)
CIE-LCHlch(54.62, 40.41, 265.27°)
OKLaboklab(60.65% -0.0515 -0.1142)
OKLCHoklch(60.65% 0.125 245.7)
XYZxyz(20.7468, 22.5604, 57.8936)
Luminance0.2256 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3688C8 #C87636
analogous
#36C8BF #3688C8 #363FC8
triadic
#3688C8 #C83688 #88C836
tetradic
#3688C8 #BF36C8 #C87636 #3FC836
square
#3688C8 #BF36C8 #C87636 #3FC836
split-complementary
#3688C8 #C8363F #C8BF36
monochromatic
#1C4668 #296798 #3688C8 #66A5D6 #96C1E3

Accessibility & contrast

On white

3.81
#3688C8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.51
#3688C8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688C8
5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3688C8#FFFFFF#000000##000000
##3688C81.003.815.515.51
#FFFFFF3.811.0021.0021.00
#0000005.5121.001.001.00
##0000005.5121.001.001.00

Color blindness preview

Protanopia (red-blind)
#6B8ACB
Deuteranopia (green-blind)
#567CC7
Tritanopia (blue-blind)
#00979F
Achromatopsia (no color)
#838383

Design tokens & code

CSS
--color: #3688c8;
/* rgb */ color: rgb(54, 136, 200);
/* oklch */ color: oklch(60.7% 0.125 245.7);
Tailwind
colors: {
  custom: {
    50: '#80aad9',
    500: '#3688c8',
    950: '#000000',
  },
}
SCSS
$custom: #3688c8;
$custom-light: #80aad9;
$custom-dark: #000000;
JSON
{
  "hex": "#3688c8",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 200
  },
  "hsl": {
    "h": 206.301,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.6065,
    "c": 0.12526,
    "h": 245.7
  },
  "luminance": 0.22563
}

Semantic roles & 50–950 ramp

primary
#3688C8
secondary
#CEA98C
accent
#8A47E1
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0B1014
muted
#7C7F83

Preview Lab

Preview with #3688C8

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

Preview Lab → · Contrast checker → · Palette generator →

#3688C8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva