#366ED1#366ED1

#366ED1 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.4% C 0.164 H 260.8°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX#366ED1
RGBrgb(54, 110, 209)
HSLhsl(218, 63%, 52%)
HSVhsv(218, 74%, 82%)
CMYKcmyk(74.2%, 47.4%, 0%, 18%)
CIE-LABlab(47.67, 15.85, -56.45)
CIE-LCHlch(47.67, 58.64, 285.68°)
OKLaboklab(55.4% -0.0262 -0.162)
OKLCHoklch(55.4% 0.164 260.8)
XYZxyz(18.6017, 16.5375, 62.5209)
Luminance0.1654 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#366ED1 #D19936
analogous
#36BBD1 #366ED1 #4C36D1
triadic
#366ED1 #D1366E #6ED136
tetradic
#366ED1 #D136BB #D19936 #36D14C
square
#366ED1 #D136BB #D19936 #36D14C
split-complementary
#366ED1 #D14C36 #BBD136
monochromatic
#1A3A72 #2653A4 #366ED1 #6892DC #9AB6E8

Accessibility & contrast

On white

4.87
#366ED1 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.31
#366ED1 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ED1
4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##366ED1#FFFFFF#000000##FFFFFF
##366ED11.004.874.314.87
#FFFFFF4.871.0021.001.00
#0000004.3121.001.0021.00
##FFFFFF4.871.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3879D5
Deuteranopia (green-blind)
#086ACF
Tritanopia (blue-blind)
#008595
Achromatopsia (no color)
#717171

Design tokens & code

CSS
--color: #366ed1;
/* rgb */ color: rgb(54, 110, 209);
/* oklch */ color: oklch(55.4% 0.164 260.8);
Tailwind
colors: {
  custom: {
    50: '#8196e0',
    500: '#366ed1',
    950: '#000000',
  },
}
SCSS
$custom: #366ed1;
$custom-light: #8196e0;
$custom-dark: #000000;
JSON
{
  "hex": "#366ed1",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 209
  },
  "hsl": {
    "h": 218.323,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.55404,
    "c": 0.16414,
    "h": 260.8
  },
  "luminance": 0.1654
}

Semantic roles & 50–950 ramp

primary
#366ED1
secondary
#D3BB8F
accent
#AB42E6
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #366ED1

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

Preview Lab → · Contrast checker → · Palette generator →

#366ED1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva