#3366E2#3366E2

#3366E2 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.9% C 0.197 H 264.1°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3366E2
RGB	rgb(51, 102, 226)
HSL	hsl(223, 75%, 54%)
HSV	hsv(223, 77%, 89%)
CMYK	cmyk(77.4%, 54.9%, 0%, 11.4%)
CIE-LAB	lab(46.57, 26.89, -67.90)
CIE-LCH	lch(46.57, 73.03, 291.61°)
OKLab	oklab(54.91% -0.0204 -0.1959)
OKLCH	oklch(54.91% 0.197 264.1)
XYZ	xyz(19.8392, 15.6952, 73.9206)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366E2 #E2AF33

analogous

#33BEE2 #3366E2 #5833E2

triadic

#3366E2 #E23366 #66E233

tetradic

#3366E2 #E233BE #E2AF33 #33E258

square

#3366E2 #E233BE #E2AF33 #33E258

split-complementary

#3366E2 #E25833 #BEE233

monochromatic

#133587 #1B4ABD #3366E2 #698EEA #9EB6F1

Accessibility & contrast

On white

5.07

#3366E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#3366E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366E2

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366E2	#FFFFFF	#000000	##FFFFFF
##3366E2	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077E6

Deuteranopia (green-blind)

#0067E0

Tritanopia (blue-blind)

#00859A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3366e2;
/* rgb */ color: rgb(51, 102, 226);
/* oklch */ color: oklch(54.9% 0.197 264.1);

Tailwind

colors: {
  custom: {
    50: '#8491ec',
    500: '#3366e2',
    950: '#000000',
  },
}

SCSS

$custom: #3366e2;
$custom-light: #8491ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3366e2",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 226
  },
  "hsl": {
    "h": 222.514,
    "s": 75.107,
    "l": 54.314
  },
  "oklch": {
    "l": 0.54906,
    "c": 0.19695,
    "h": 264.1
  },
  "luminance": 0.15698
}

Semantic roles & 50–950 ramp

primary

#3366E2

secondary

#DEC893

accent

#BB36F2

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3366E2

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

Preview Lab → · Contrast checker → · Palette generator →