#3688C5#3688C5

#3688C5 is a mid, vivid cyan. Relative luminance 0.224; OKLCH L 60.5% C 0.122 H 244.5°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX#3688C5
RGBrgb(54, 136, 197)
HSLhsl(206, 57%, 49%)
HSVhsv(206, 73%, 77%)
CMYKcmyk(72.6%, 31%, 0%, 22.7%)
CIE-LABlab(54.47, -4.39, -38.80)
CIE-LCHlch(54.47, 39.05, 263.54°)
OKLaboklab(60.49% -0.0524 -0.1099)
OKLCHoklch(60.49% 0.122 244.5)
XYZxyz(20.3997, 22.4215, 56.0652)
Luminance0.2242 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3688C5 #C57336
analogous
#36C5BB #3688C5 #3641C5
triadic
#3688C5 #C53688 #88C536
tetradic
#3688C5 #BB36C5 #C57336 #41C536
square
#3688C5 #BB36C5 #C57336 #41C536
split-complementary
#3688C5 #C53641 #C5BB36
monochromatic
#1C4665 #296795 #3688C5 #64A4D4 #94C0E2

Accessibility & contrast

On white

3.83
#3688C5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.48
#3688C5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688C5
5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3688C5#FFFFFF#000000##000000
##3688C51.003.835.485.48
#FFFFFF3.831.0021.0021.00
#0000005.4821.001.001.00
##0000005.4821.001.001.00

Color blindness preview

Protanopia (red-blind)
#6C8AC8
Deuteranopia (green-blind)
#587CC4
Tritanopia (blue-blind)
#00979E
Achromatopsia (no color)
#828282

Design tokens & code

CSS
--color: #3688c5;
/* rgb */ color: rgb(54, 136, 197);
/* oklch */ color: oklch(60.5% 0.122 244.5);
Tailwind
colors: {
  custom: {
    50: '#7faad7',
    500: '#3688c5',
    950: '#000000',
  },
}
SCSS
$custom: #3688c5;
$custom-light: #7faad7;
$custom-dark: #000000;
JSON
{
  "hex": "#3688c5",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 197
  },
  "hsl": {
    "h": 205.594,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.60487,
    "c": 0.12175,
    "h": 244.5
  },
  "luminance": 0.22424
}

Semantic roles & 50–950 ramp

primary
#3688C5
secondary
#CDA78A
accent
#8948E0
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0B1014
muted
#7C7F83

Preview Lab

Preview with #3688C5

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

Preview Lab → · Contrast checker → · Palette generator →

#3688C5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva