#3663C0#3663C0

#3663C0 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.9% C 0.154 H 262.8°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX#3663C0
RGBrgb(54, 99, 192)
HSLhsl(220, 56%, 48%)
HSVhsv(220, 72%, 75%)
CMYKcmyk(71.9%, 48.4%, 0%, 24.7%)
CIE-LABlab(43.52, 16.56, -53.35)
CIE-LCHlch(43.52, 55.86, 287.25°)
OKLaboklab(51.88% -0.0193 -0.1531)
OKLCHoklch(51.88% 0.154 262.8)
XYZxyz(15.4942, 13.5121, 51.6505)
Luminance0.1351 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3663C0 #C09336
analogous
#36A8C0 #3663C0 #4E36C0
triadic
#3663C0 #C03663 #63C036
tetradic
#3663C0 #C036A8 #C09336 #36C04E
square
#3663C0 #C036A8 #C09336 #36C04E
split-complementary
#3663C0 #C04E36 #A8C036
monochromatic
#1B3260 #294A90 #3663C0 #6186D2 #90AAE0

Accessibility & contrast

On white

5.67
#3663C0 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.70
#3663C0 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3663C0
5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3663C0#FFFFFF#000000##FFFFFF
##3663C01.005.673.705.67
#FFFFFF5.671.0021.001.00
#0000003.7021.001.0021.00
##FFFFFF5.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2F6EC3
Deuteranopia (green-blind)
#0361BE
Tritanopia (blue-blind)
#007988
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #3663c0;
/* rgb */ color: rgb(54, 99, 192);
/* oklch */ color: oklch(51.9% 0.154 262.8);
Tailwind
colors: {
  custom: {
    50: '#7e8ed4',
    500: '#3663c0',
    950: '#000000',
  },
}
SCSS
$custom: #3663c0;
$custom-light: #7e8ed4;
$custom-dark: #000000;
JSON
{
  "hex": "#3663c0",
  "rgb": {
    "r": 54,
    "g": 99,
    "b": 192
  },
  "hsl": {
    "h": 220.435,
    "s": 56.098,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51875,
    "c": 0.15432,
    "h": 262.8
  },
  "luminance": 0.13514
}

Semantic roles & 50–950 ramp

primary
#3663C0
secondary
#CBB587
accent
#AE48DF
background
#F8F8FD
surface
#EFF0FA
border
#CACBD3
text
#0B0C14
muted
#7C7D83

Preview Lab

Preview with #3663C0

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

Preview Lab → · Contrast checker → · Palette generator →

#3663C0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva