#366ABE#366ABE

#366ABE is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.3% C 0.143 H 259.6°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX#366ABE
RGBrgb(54, 106, 190)
HSLhsl(217, 56%, 48%)
HSVhsv(217, 72%, 75%)
CMYKcmyk(71.6%, 44.2%, 0%, 25.5%)
CIE-LABlab(45.37, 11.36, -49.23)
CIE-LCHlch(45.37, 50.52, 282.99°)
OKLaboklab(53.25% -0.0259 -0.1409)
OKLCHoklch(53.25% 0.143 259.6)
XYZxyz(15.9663, 14.8083, 50.7221)
Luminance0.1481 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#366ABE #BE8A36
analogous
#36AEBE #366ABE #4636BE
triadic
#366ABE #BE366A #6ABE36
tetradic
#366ABE #BE36AE #BE8A36 #36BE46
square
#366ABE #BE36AE #BE8A36 #36BE46
split-complementary
#366ABE #BE4636 #AEBE36
monochromatic
#1B355F #284F8E #366ABE #608BD2 #8FAEDF

Accessibility & contrast

On white

5.30
#366ABE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.96
#366ABE on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ABE
5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##366ABE#FFFFFF#000000##FFFFFF
##366ABE1.005.303.965.30
#FFFFFF5.301.0021.001.00
#0000003.9621.001.0021.00
##FFFFFF5.301.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4072C1
Deuteranopia (green-blind)
#2766BC
Tritanopia (blue-blind)
#007E8B
Achromatopsia (no color)
#6B6B6B

Design tokens & code

CSS
--color: #366abe;
/* rgb */ color: rgb(54, 106, 190);
/* oklch */ color: oklch(53.3% 0.143 259.6);
Tailwind
colors: {
  custom: {
    50: '#7e94d2',
    500: '#366abe',
    950: '#000000',
  },
}
SCSS
$custom: #366abe;
$custom-light: #7e94d2;
$custom-dark: #000000;
JSON
{
  "hex": "#366abe",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 190
  },
  "hsl": {
    "h": 217.059,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.53254,
    "c": 0.14322,
    "h": 259.6
  },
  "luminance": 0.1481
}

Semantic roles & 50–950 ramp

primary
#366ABE
secondary
#CAB086
accent
#A649DF
background
#F8F9FC
surface
#EFF1F9
border
#CACBD2
text
#0B0D14
muted
#7C7E82

Preview Lab

Preview with #366ABE

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

Preview Lab → · Contrast checker → · Palette generator →

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