#3688CA#3688CA

#3688CA is a mid, vivid cyan. Relative luminance 0.227; OKLCH L 60.8% C 0.128 H 246.5°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX#3688CA
RGBrgb(54, 136, 202)
HSLhsl(207, 58%, 50%)
HSVhsv(207, 73%, 79%)
CMYKcmyk(73.3%, 32.7%, 0%, 20.8%)
CIE-LABlab(54.71, -2.62, -41.25)
CIE-LCHlch(54.71, 41.34, 266.37°)
OKLaboklab(60.76% -0.0509 -0.117)
OKLCHoklch(60.76% 0.128 246.5)
XYZxyz(20.9821, 22.6545, 59.1326)
Luminance0.2266 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3688CA #CA7836
analogous
#36CAC2 #3688CA #363ECA
triadic
#3688CA #CA3688 #88CA36
tetradic
#3688CA #C236CA #CA7836 #3ECA36
square
#3688CA #C236CA #CA7836 #3ECA36
split-complementary
#3688CA #CA363E #CAC236
monochromatic
#1C476A #29689A #3688CA #66A5D7 #97C1E4

Accessibility & contrast

On white

3.80
#3688CA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.53
#3688CA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688CA
5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3688CA#FFFFFF#000000##000000
##3688CA1.003.805.535.53
#FFFFFF3.801.0021.0021.00
#0000005.5321.001.001.00
##0000005.5321.001.001.00

Color blindness preview

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

Design tokens & code

CSS
--color: #3688ca;
/* rgb */ color: rgb(54, 136, 202);
/* oklch */ color: oklch(60.8% 0.128 246.5);
Tailwind
colors: {
  custom: {
    50: '#80aada',
    500: '#3688ca',
    950: '#000000',
  },
}
SCSS
$custom: #3688ca;
$custom-light: #80aada;
$custom-dark: #000000;
JSON
{
  "hex": "#3688ca",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 202
  },
  "hsl": {
    "h": 206.757,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.60759,
    "c": 0.12764,
    "h": 246.5
  },
  "luminance": 0.22657
}

Semantic roles & 50–950 ramp

primary
#3688CA
secondary
#CFAA8D
accent
#8C46E1
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3688CA

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

Preview Lab → · Contrast checker → · Palette generator →

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