#366DCF#366DCF

#366DCF is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.1% C 0.163 H 260.9°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX#366DCF
RGBrgb(54, 109, 207)
HSLhsl(218, 61%, 51%)
HSVhsv(218, 74%, 81%)
CMYKcmyk(73.9%, 47.3%, 0%, 18.8%)
CIE-LABlab(47.27, 15.74, -55.96)
CIE-LCHlch(47.27, 58.13, 285.71°)
OKLaboklab(55.05% -0.0256 -0.1606)
OKLCHoklch(55.05% 0.163 260.9)
XYZxyz(18.2484, 16.2245, 61.1893)
Luminance0.1623 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#366DCF #CF9836
analogous
#36BACF #366DCF #4B36CF
triadic
#366DCF #CF366D #6DCF36
tetradic
#366DCF #CF36BA #CF9836 #36CF4B
square
#366DCF #CF36BA #CF9836 #36CF4B
split-complementary
#366DCF #CF4B36 #BACF36
monochromatic
#1B3970 #2753A1 #366DCF #6791DB #99B5E7

Accessibility & contrast

On white

4.95
#366DCF on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.25
#366DCF on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DCF
4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##366DCF#FFFFFF#000000##FFFFFF
##366DCF1.004.954.254.95
#FFFFFF4.951.0021.001.00
#0000004.2521.001.0021.00
##FFFFFF4.951.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3778D3
Deuteranopia (green-blind)
#0A6ACD
Tritanopia (blue-blind)
#008494
Achromatopsia (no color)
#707070

Design tokens & code

CSS
--color: #366dcf;
/* rgb */ color: rgb(54, 109, 207);
/* oklch */ color: oklch(55.1% 0.163 260.9);
Tailwind
colors: {
  custom: {
    50: '#8196de',
    500: '#366dcf',
    950: '#000000',
  },
}
SCSS
$custom: #366dcf;
$custom-light: #8196de;
$custom-dark: #000000;
JSON
{
  "hex": "#366dcf",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 207
  },
  "hsl": {
    "h": 218.431,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55053,
    "c": 0.16265,
    "h": 260.9
  },
  "luminance": 0.16227
}

Semantic roles & 50–950 ramp

primary
#366DCF
secondary
#D2BA8F
accent
#AB43E5
background
#F8F9FD
surface
#F0F1FB
border
#CBCBD4
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #366DCF

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

Preview Lab → · Contrast checker → · Palette generator →

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