#3683C5#3683C5

#3683C5 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.3% C 0.126 H 247.8°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX#3683C5
RGBrgb(54, 131, 197)
HSLhsl(208, 57%, 49%)
HSVhsv(208, 73%, 77%)
CMYKcmyk(72.6%, 33.5%, 0%, 22.7%)
CIE-LABlab(53.00, -1.45, -41.12)
CIE-LCHlch(53.00, 41.14, 267.98°)
OKLaboklab(59.33% -0.0476 -0.1167)
OKLCHoklch(59.33% 0.126 247.8)
XYZxyz(19.7118, 21.0459, 55.8359)
Luminance0.2105 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3683C5 #C57836
analogous
#36C5C0 #3683C5 #363CC5
triadic
#3683C5 #C53683 #83C536
tetradic
#3683C5 #C036C5 #C57836 #3CC536
square
#3683C5 #C036C5 #C57836 #3CC536
split-complementary
#3683C5 #C5363C #C5C036
monochromatic
#1C4365 #296395 #3683C5 #64A0D4 #94BEE2

Accessibility & contrast

On white

4.03
#3683C5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.21
#3683C5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683C5
5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3683C5#FFFFFF#000000##000000
##3683C51.004.035.215.21
#FFFFFF4.031.0021.0021.00
#0000005.2121.001.001.00
##0000005.2121.001.001.00

Color blindness preview

Protanopia (red-blind)
#6586C8
Deuteranopia (green-blind)
#5178C4
Tritanopia (blue-blind)
#00939B
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #3683c5;
/* rgb */ color: rgb(54, 131, 197);
/* oklch */ color: oklch(59.3% 0.126 247.8);
Tailwind
colors: {
  custom: {
    50: '#7fa6d7',
    500: '#3683c5',
    950: '#000000',
  },
}
SCSS
$custom: #3683c5;
$custom-light: #7fa6d7;
$custom-dark: #000000;
JSON
{
  "hex": "#3683c5",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 197
  },
  "hsl": {
    "h": 207.692,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.59328,
    "c": 0.12605,
    "h": 247.8
  },
  "luminance": 0.21048
}

Semantic roles & 50–950 ramp

primary
#3683C5
secondary
#CDA98A
accent
#8E48E0
background
#F8FAFD
surface
#EFF4FA
border
#CACED3
text
#0B0F14
muted
#7C7F83

Preview Lab

Preview with #3683C5

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

Preview Lab → · Contrast checker → · Palette generator →

#3683C5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva