#6369CF#6369CF

#6369CF is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.7% C 0.155 H 277.7°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX#6369CF
RGBrgb(99, 105, 207)
HSLhsl(237, 53%, 60%)
HSVhsv(237, 52%, 81%)
CMYKcmyk(52.2%, 49.3%, 0%, 18.8%)
CIE-LABlab(48.59, 26.06, -53.72)
CIE-LCHlch(48.59, 59.71, 295.88°)
OKLaboklab(56.69% 0.0208 -0.1531)
OKLCHoklch(56.69% 0.155 277.7)
XYZxyz(21.4561, 17.2595, 61.2202)
Luminance0.1726 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6369CF #CFC963
analogous
#639FCF #6369CF #9363CF
triadic
#6369CF #CF6369 #69CF63
tetradic
#6369CF #CF639F #CFC963 #63CF93
square
#6369CF #CF639F #CFC963 #63CF93
split-complementary
#6369CF #CF9363 #9FCF63
monochromatic
#2B318C #3A41BB #6369CF #9296DD #C1C3EC

Accessibility & contrast

On white

4.72
#6369CF on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.45
#6369CF on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6369CF
4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6369CF#FFFFFF#000000##FFFFFF
##6369CF1.004.724.454.72
#FFFFFF4.721.0021.001.00
#0000004.4521.001.0021.00
##FFFFFF4.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3878D3
Deuteranopia (green-blind)
#2C6FCD
Tritanopia (blue-blind)
#347F92
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #6369cf;
/* rgb */ color: rgb(99, 105, 207);
/* oklch */ color: oklch(56.7% 0.155 277.7);
Tailwind
colors: {
  custom: {
    50: '#9793de',
    500: '#6369cf',
    950: '#000000',
  },
}
SCSS
$custom: #6369cf;
$custom-light: #9793de;
$custom-dark: #000000;
JSON
{
  "hex": "#6369cf",
  "rgb": {
    "r": 99,
    "g": 105,
    "b": 207
  },
  "hsl": {
    "h": 236.667,
    "s": 52.941,
    "l": 60
  },
  "oklch": {
    "l": 0.56691,
    "c": 0.15454,
    "h": 277.7
  },
  "luminance": 0.17261
}

Semantic roles & 50–950 ramp

primary
#6369CF
secondary
#DCD9B2
accent
#D44BDC
background
#F9F9FD
surface
#F2F1FB
border
#CCCBD4
text
#0E0D15
muted
#7E7E83

Preview Lab

Preview with #6369CF

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

Preview Lab → · Contrast checker → · Palette generator →

#6369CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva