#366AD7#366AD7

#366AD7 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 55.0% C 0.177 H 262.8°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#366AD7
RGB	rgb(54, 106, 215)
HSL	hsl(221, 67%, 53%)
HSV	hsv(221, 75%, 84%)
CMYK	cmyk(74.9%, 50.7%, 0%, 15.7%)
CIE-LAB	lab(46.97, 20.61, -61.01)
CIE-LCH	lch(46.97, 64.39, 288.66°)
OKLab	oklab(54.99% -0.0222 -0.1755)
OKLCH	oklch(54.99% 0.177 262.8)
XYZ	xyz(18.9367, 15.9965, 66.3664)
Luminance	0.1600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AD7 #D7A336

analogous

#36BBD7 #366AD7 #5236D7

triadic

#366AD7 #D7366A #6AD736

tetradic

#366AD7 #D736BB #D7A336 #36D752

square

#366AD7 #D736BB #D7A336 #36D752

split-complementary

#366AD7 #D75236 #BBD736

monochromatic

#18387A #224FAD #366AD7 #6990E1 #9CB6EB

Accessibility & contrast

On white

5.00

#366AD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#366AD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AD7

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AD7	#FFFFFF	#000000	##FFFFFF
##366AD7	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2577DB

Deuteranopia (green-blind)

#0068D5

Tritanopia (blue-blind)

#008496

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366ad7;
/* rgb */ color: rgb(54, 106, 215);
/* oklch */ color: oklch(55.0% 0.177 262.8);

Tailwind

colors: {
  custom: {
    50: '#8394e4',
    500: '#366ad7',
    950: '#000000',
  },
}

SCSS

$custom: #366ad7;
$custom-light: #8394e4;
$custom-dark: #000000;

JSON

{
  "hex": "#366ad7",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 215
  },
  "hsl": {
    "h": 220.621,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.54993,
    "c": 0.1769,
    "h": 262.8
  },
  "luminance": 0.15999
}

Semantic roles & 50–950 ramp

primary

#366AD7

secondary

#D7C192

accent

#B23EEA

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #366AD7

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

Preview Lab → · Contrast checker → · Palette generator →