#6566CE#6566CE

#6566CE is a mid, vivid blue. Relative luminance 0.167; OKLCH L 56.2% C 0.157 H 279.7°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX#6566CE
RGBrgb(101, 102, 206)
HSLhsl(239, 52%, 60%)
HSVhsv(239, 51%, 81%)
CMYKcmyk(51%, 50.5%, 0%, 19.2%)
CIE-LABlab(47.91, 28.01, -54.22)
CIE-LCHlch(47.91, 61.03, 297.32°)
OKLaboklab(56.2% 0.0264 -0.1546)
OKLCHoklch(56.2% 0.157 279.7)
XYZxyz(21.2553, 16.7244, 60.4887)
Luminance0.1673 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6566CE #CECD65
analogous
#659ACE #6566CE #9965CE
triadic
#6566CE #CE6566 #66CE65
tetradic
#6566CE #CE659A #CECD65 #65CE99
square
#6566CE #CE659A #CECD65 #65CE99
split-complementary
#6566CE #CE9965 #9ACE65
monochromatic
#2D2D8C #3B3DBA #6566CE #9394DD #C2C2EC

Accessibility & contrast

On white

4.83
#6566CE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.35
#6566CE on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6566CE
4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6566CE#FFFFFF#000000##FFFFFF
##6566CE1.004.834.354.83
#FFFFFF4.831.0021.001.00
#0000004.3521.001.0021.00
##FFFFFF4.831.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3376D2
Deuteranopia (green-blind)
#286ECC
Tritanopia (blue-blind)
#3A7D90
Achromatopsia (no color)
#727272

Design tokens & code

CSS
--color: #6566ce;
/* rgb */ color: rgb(101, 102, 206);
/* oklch */ color: oklch(56.2% 0.157 279.7);
Tailwind
colors: {
  custom: {
    50: '#9891dd',
    500: '#6566ce',
    950: '#000000',
  },
}
SCSS
$custom: #6566ce;
$custom-light: #9891dd;
$custom-dark: #000000;
JSON
{
  "hex": "#6566ce",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 239.429,
    "s": 51.724,
    "l": 60.196
  },
  "oklch": {
    "l": 0.562,
    "c": 0.15682,
    "h": 279.7
  },
  "luminance": 0.16726
}

Semantic roles & 50–950 ramp

primary
#6566CE
secondary
#DCDBB3
accent
#BE26BF
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0E0C15
muted
#7E7D83

Preview Lab

Preview with #6566CE

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

Preview Lab → · Contrast checker → · Palette generator →

#6566CE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva