#6368BB#6368BB

#6368BB is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.2% C 0.128 H 278.7°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX#6368BB
RGBrgb(99, 104, 187)
HSLhsl(237, 39%, 56%)
HSVhsv(237, 47%, 73%)
CMYKcmyk(47.1%, 44.4%, 0%, 26.7%)
CIE-LABlab(47.16, 20.44, -44.49)
CIE-LCHlch(47.16, 48.96, 294.68°)
OKLaboklab(55.23% 0.0194 -0.1261)
OKLCHoklch(55.23% 0.128 278.7)
XYZxyz(19.0628, 16.1401, 49.1150)
Luminance0.1614 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6368BB #BBB663
analogous
#6394BB #6368BB #8A63BB
triadic
#6368BB #BB6368 #68BB63
tetradic
#6368BB #BB6394 #BBB663 #63BB8A
square
#6368BB #BB6394 #BBB663 #63BB8A
split-complementary
#6368BB #BB8A63 #94BB63
monochromatic
#323572 #44499D #6368BB #8E91CE #B8BBE0

Accessibility & contrast

On white

4.97
#6368BB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.23
#6368BB on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6368BB
4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6368BB#FFFFFF#000000##FFFFFF
##6368BB1.004.974.234.97
#FFFFFF4.971.0021.001.00
#0000004.2321.001.0021.00
##FFFFFF4.971.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4773BE
Deuteranopia (green-blind)
#406DB9
Tritanopia (blue-blind)
#447988
Achromatopsia (no color)
#707070

Design tokens & code

CSS
--color: #6368bb;
/* rgb */ color: rgb(99, 104, 187);
/* oklch */ color: oklch(55.2% 0.128 278.7);
Tailwind
colors: {
  custom: {
    50: '#9493d0',
    500: '#6368bb',
    950: '#000000',
  },
}
SCSS
$custom: #6368bb;
$custom-light: #9493d0;
$custom-dark: #000000;
JSON
{
  "hex": "#6368bb",
  "rgb": {
    "r": 99,
    "g": 104,
    "b": 187
  },
  "hsl": {
    "h": 236.591,
    "s": 39.286,
    "l": 56.078
  },
  "oklch": {
    "l": 0.55232,
    "c": 0.12755,
    "h": 278.7
  },
  "luminance": 0.16141
}

Semantic roles & 50–950 ramp

primary
#6368BB
secondary
#CFCDAB
accent
#C859CF
background
#F9F9FC
surface
#F2F1F9
border
#CCCBD2
text
#0E0D14
muted
#7E7E82

Preview Lab

Preview with #6368BB

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

Preview Lab → · Contrast checker → · Palette generator →

#6368BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva