#366FD7#366FD7

#366FD7 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.171 H 261.2°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX#366FD7
RGBrgb(54, 111, 215)
HSLhsl(219, 67%, 53%)
HSVhsv(219, 75%, 84%)
CMYKcmyk(74.9%, 48.4%, 0%, 15.7%)
CIE-LABlab(48.33, 17.44, -58.81)
CIE-LCHlch(48.33, 61.34, 286.51°)
OKLaboklab(56.03% -0.0261 -0.1689)
OKLCHoklch(56.03% 0.171 261.2)
XYZxyz(19.4671, 17.0573, 66.5432)
Luminance0.1706 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#366FD7 #D79E36
analogous
#36BFD7 #366FD7 #4E36D7
triadic
#366FD7 #D7366F #6FD736
tetradic
#366FD7 #D736BF #D79E36 #36D74E
square
#366FD7 #D736BF #D79E36 #36D74E
split-complementary
#366FD7 #D74E36 #BFD736
monochromatic
#183B7A #2254AD #366FD7 #6994E1 #9CB8EB

Accessibility & contrast

On white

4.76
#366FD7 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.41
#366FD7 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FD7
4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##366FD7#FFFFFF#000000##FFFFFF
##366FD71.004.764.414.76
#FFFFFF4.761.0021.001.00
#0000004.4121.001.0021.00
##FFFFFF4.761.0021.001.00

Color blindness preview

Protanopia (red-blind)
#347BDB
Deuteranopia (green-blind)
#006CD5
Tritanopia (blue-blind)
#008899
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #366fd7;
/* rgb */ color: rgb(54, 111, 215);
/* oklch */ color: oklch(56.0% 0.171 261.2);
Tailwind
colors: {
  custom: {
    50: '#8397e4',
    500: '#366fd7',
    950: '#000000',
  },
}
SCSS
$custom: #366fd7;
$custom-light: #8397e4;
$custom-dark: #000000;
JSON
{
  "hex": "#366fd7",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 215
  },
  "hsl": {
    "h": 218.758,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.56034,
    "c": 0.17096,
    "h": 261.2
  },
  "luminance": 0.17059
}

Semantic roles & 50–950 ramp

primary
#366FD7
secondary
#D7BF92
accent
#AD3EEA
background
#F8F9FE
surface
#F0F2FC
border
#CBCCD5
text
#0C0D16
muted
#7D7E84

Preview Lab

Preview with #366FD7

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

Preview Lab → · Contrast checker → · Palette generator →

#366FD7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva