#3366C2#3366C2

#3366C2 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.5% C 0.154 H 261.1°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#3366C2
RGB	rgb(51, 102, 194)
HSL	hsl(219, 58%, 48%)
HSV	hsv(219, 74%, 76%)
CMYK	cmyk(73.7%, 47.4%, 0%, 23.9%)
CIE-LAB	lab(44.38, 14.98, -53.15)
CIE-LCH	lch(44.38, 55.22, 285.74°)
OKLab	oklab(52.54% -0.0239 -0.1525)
OKLCH	oklch(52.54% 0.154 261.1)
XYZ	xyz(15.8507, 14.0998, 52.9146)
Luminance	0.1410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366C2 #C28F33

analogous

#33ADC2 #3366C2 #4733C2

triadic

#3366C2 #C23366 #66C233

tetradic

#3366C2 #C233AD #C28F33 #33C247

square

#3366C2 #C233AD #C28F33 #33C247

split-complementary

#3366C2 #C24733 #ADC233

monochromatic

#1A3361 #264D92 #3366C2 #5E88D5 #8EACE1

Accessibility & contrast

On white

5.50

#3366C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3366C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366C2

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366C2	#FFFFFF	#000000	##FFFFFF
##3366C2	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3470C5

Deuteranopia (green-blind)

#0C63C0

Tritanopia (blue-blind)

#007C8A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3366c2;
/* rgb */ color: rgb(51, 102, 194);
/* oklch */ color: oklch(52.5% 0.154 261.1);

Tailwind

colors: {
  custom: {
    50: '#7d91d5',
    500: '#3366c2',
    950: '#000000',
  },
}

SCSS

$custom: #3366c2;
$custom-light: #7d91d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3366c2",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 194
  },
  "hsl": {
    "h": 218.601,
    "s": 58.367,
    "l": 48.039
  },
  "oklch": {
    "l": 0.52536,
    "c": 0.15436,
    "h": 261.1
  },
  "luminance": 0.14102
}

Semantic roles & 50–950 ramp

primary

#3366C2

secondary

#CCB385

accent

#AA46E2

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3366C2

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

Preview Lab → · Contrast checker → · Palette generator →