#3591D2#3591D2

#3591D2 is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.2% C 0.130 H 243.7°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX#3591D2
RGBrgb(53, 145, 210)
HSLhsl(205, 64%, 52%)
HSVhsv(205, 75%, 82%)
CMYKcmyk(74.8%, 31%, 0%, 17.6%)
CIE-LABlab(57.71, -5.14, -41.05)
CIE-LCHlch(57.71, 41.37, 262.86°)
OKLaboklab(63.24% -0.0576 -0.1163)
OKLCHoklch(63.24% 0.13 243.7)
XYZxyz(23.2220, 25.6581, 64.6889)
Luminance0.2566 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3591D2 #D27635
analogous
#35D2C5 #3591D2 #3543D2
triadic
#3591D2 #D23591 #91D235
tetradic
#3591D2 #C535D2 #D27635 #43D235
square
#3591D2 #C535D2 #D27635 #43D235
split-complementary
#3591D2 #D23543 #D2C535
monochromatic
#1A4E73 #2570A5 #3591D2 #67ACDD #99C8E8

Accessibility & contrast

On white

3.42
#3591D2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.13
#3591D2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3591D2
6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3591D2#FFFFFF#000000##000000
##3591D21.003.426.136.13
#FFFFFF3.421.0021.0021.00
#0000006.1321.001.001.00
##0000006.1321.001.001.00

Color blindness preview

Protanopia (red-blind)
#7393D5
Deuteranopia (green-blind)
#5D84D1
Tritanopia (blue-blind)
#00A1A8
Achromatopsia (no color)
#8B8B8B

Design tokens & code

CSS
--color: #3591d2;
/* rgb */ color: rgb(53, 145, 210);
/* oklch */ color: oklch(63.2% 0.130 243.7);
Tailwind
colors: {
  custom: {
    50: '#81b1e0',
    500: '#3591d2',
    950: '#000000',
  },
}
SCSS
$custom: #3591d2;
$custom-light: #81b1e0;
$custom-dark: #000000;
JSON
{
  "hex": "#3591d2",
  "rgb": {
    "r": 53,
    "g": 145,
    "b": 210
  },
  "hsl": {
    "h": 204.841,
    "s": 63.563,
    "l": 51.569
  },
  "oklch": {
    "l": 0.63243,
    "c": 0.12978,
    "h": 243.7
  },
  "luminance": 0.25661
}

Semantic roles & 50–950 ramp

primary
#3591D2
secondary
#D4AB8F
accent
#8641E7
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3591D2

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

Preview Lab → · Contrast checker → · Palette generator →

#3591D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva