#366DC8#366DC8

#366DC8 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.6% C 0.153 H 259.9°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX#366DC8
RGBrgb(54, 109, 200)
HSLhsl(217, 57%, 50%)
HSVhsv(217, 73%, 78%)
CMYKcmyk(73%, 45.5%, 0%, 21.6%)
CIE-LABlab(46.83, 13.15, -52.66)
CIE-LCHlch(46.83, 54.27, 284.02°)
OKLaboklab(54.58% -0.0268 -0.1509)
OKLCHoklch(54.58% 0.153 259.9)
XYZxyz(17.4115, 15.8898, 56.7818)
Luminance0.1589 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#366DC8 #C89136
analogous
#36B6C8 #366DC8 #4836C8
triadic
#366DC8 #C8366D #6DC836
tetradic
#366DC8 #C836B6 #C89136 #36C848
square
#366DC8 #C836B6 #C89136 #36C848
split-complementary
#366DC8 #C84836 #B6C836
monochromatic
#1C3868 #295398 #366DC8 #6690D6 #96B3E3

Accessibility & contrast

On white

5.03
#366DC8 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.18
#366DC8 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC8
5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##366DC8#FFFFFF#000000##FFFFFF
##366DC81.005.034.185.03
#FFFFFF5.031.0021.001.00
#0000004.1821.001.0021.00
##FFFFFF5.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3E76CB
Deuteranopia (green-blind)
#1F69C6
Tritanopia (blue-blind)
#008291
Achromatopsia (no color)
#6F6F6F

Design tokens & code

CSS
--color: #366dc8;
/* rgb */ color: rgb(54, 109, 200);
/* oklch */ color: oklch(54.6% 0.153 259.9);
Tailwind
colors: {
  custom: {
    50: '#8096d9',
    500: '#366dc8',
    950: '#000000',
  },
}
SCSS
$custom: #366dc8;
$custom-light: #8096d9;
$custom-dark: #000000;
JSON
{
  "hex": "#366dc8",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 200
  },
  "hsl": {
    "h": 217.397,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.54575,
    "c": 0.15325,
    "h": 259.9
  },
  "luminance": 0.15892
}

Semantic roles & 50–950 ramp

primary
#366DC8
secondary
#CEB58C
accent
#A747E1
background
#F8F9FD
surface
#F0F1FA
border
#CBCBD3
text
#0C0D15
muted
#7D7E83

Preview Lab

Preview with #366DC8

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

Preview Lab → · Contrast checker → · Palette generator →

#366DC8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva