#3366C4#3366C4

#3366C4 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.7% C 0.157 H 261.4°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3366C4
RGB	rgb(51, 102, 196)
HSL	hsl(219, 59%, 48%)
HSV	hsv(219, 74%, 77%)
CMYK	cmyk(74%, 48%, 0%, 23.1%)
CIE-LAB	lab(44.50, 15.72, -54.09)
CIE-LCH	lch(44.50, 56.33, 286.21°)
OKLab	oklab(52.68% -0.0236 -0.1553)
OKLCH	oklch(52.68% 0.157 261.4)
XYZ	xyz(16.0768, 14.1903, 54.1056)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366C4 #C49133

analogous

#33AEC4 #3366C4 #4933C4

triadic

#3366C4 #C43366 #66C433

tetradic

#3366C4 #C433AE #C49133 #33C449

square

#3366C4 #C433AE #C49133 #33C449

split-complementary

#3366C4 #C44933 #AEC433

monochromatic

#1A3363 #264D93 #3366C4 #5F89D5 #8FACE2

Accessibility & contrast

On white

5.47

#3366C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#3366C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366C4

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366C4	#FFFFFF	#000000	##FFFFFF
##3366C4	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3270C7

Deuteranopia (green-blind)

#0263C2

Tritanopia (blue-blind)

#007C8B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3366c4;
/* rgb */ color: rgb(51, 102, 196);
/* oklch */ color: oklch(52.7% 0.157 261.4);

Tailwind

colors: {
  custom: {
    50: '#7e91d6',
    500: '#3366c4',
    950: '#000000',
  },
}

SCSS

$custom: #3366c4;
$custom-light: #7e91d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3366c4",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 196
  },
  "hsl": {
    "h": 218.897,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.52677,
    "c": 0.15707,
    "h": 261.4
  },
  "luminance": 0.14192
}

Semantic roles & 50–950 ramp

primary

#3366C4

secondary

#CDB486

accent

#AB46E2

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3366C4

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

Preview Lab → · Contrast checker → · Palette generator →