#3665C8#3665C8

#3665C8 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.9% C 0.163 H 263.0°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX#3665C8
RGBrgb(54, 101, 200)
HSLhsl(221, 57%, 50%)
HSVhsv(221, 73%, 78%)
CMYKcmyk(73%, 49.5%, 0%, 21.6%)
CIE-LABlab(44.60, 18.24, -56.24)
CIE-LCHlch(44.60, 59.12, 287.97°)
OKLaboklab(52.87% -0.02 -0.1616)
OKLCHoklch(52.87% 0.163 263)
XYZxyz(16.5966, 14.2600, 56.5102)
Luminance0.1426 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3665C8 #C89936
analogous
#36AEC8 #3665C8 #5036C8
triadic
#3665C8 #C83665 #65C836
tetradic
#3665C8 #C836AE #C89936 #36C850
square
#3665C8 #C836AE #C89936 #36C850
split-complementary
#3665C8 #C85036 #AEC836
monochromatic
#1C3468 #294D98 #3665C8 #668AD6 #96AFE3

Accessibility & contrast

On white

5.45
#3665C8 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.85
#3665C8 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3665C8
5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3665C8#FFFFFF#000000##FFFFFF
##3665C81.005.453.855.45
#FFFFFF5.451.0021.001.00
#0000003.8521.001.0021.00
##FFFFFF5.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2B71CC
Deuteranopia (green-blind)
#0063C6
Tritanopia (blue-blind)
#007D8D
Achromatopsia (no color)
#696969

Design tokens & code

CSS
--color: #3665c8;
/* rgb */ color: rgb(54, 101, 200);
/* oklch */ color: oklch(52.9% 0.163 263.0);
Tailwind
colors: {
  custom: {
    50: '#8090d9',
    500: '#3665c8',
    950: '#000000',
  },
}
SCSS
$custom: #3665c8;
$custom-light: #8090d9;
$custom-dark: #000000;
JSON
{
  "hex": "#3665c8",
  "rgb": {
    "r": 54,
    "g": 101,
    "b": 200
  },
  "hsl": {
    "h": 220.685,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.52868,
    "c": 0.16279,
    "h": 263
  },
  "luminance": 0.14262
}

Semantic roles & 50–950 ramp

primary
#3665C8
secondary
#CEB98C
accent
#AF47E1
background
#F8F8FD
surface
#F0F0FB
border
#CBCBD4
text
#0C0C15
muted
#7D7D83

Preview Lab

Preview with #3665C8

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

Preview Lab → · Contrast checker → · Palette generator →

#3665C8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva