#3366C3#3366C3

#3366C3 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.6% C 0.156 H 261.2°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3366C3
RGB	rgb(51, 102, 195)
HSL	hsl(219, 59%, 48%)
HSV	hsv(219, 74%, 76%)
CMYK	cmyk(73.8%, 47.7%, 0%, 23.5%)
CIE-LAB	lab(44.44, 15.35, -53.62)
CIE-LCH	lch(44.44, 55.77, 285.97°)
OKLab	oklab(52.61% -0.0238 -0.1539)
OKLCH	oklch(52.61% 0.156 261.2)
XYZ	xyz(15.9634, 14.1449, 53.5081)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3366C3 #C39033

analogous

#33AEC3 #3366C3 #4833C3

triadic

#3366C3 #C33366 #66C333

tetradic

#3366C3 #C333AE #C39033 #33C348

square

#3366C3 #C333AE #C39033 #33C348

split-complementary

#3366C3 #C34833 #AEC333

monochromatic

#1A3362 #264D92 #3366C3 #5E88D5 #8FACE2

Accessibility & contrast

On white

5.48

#3366C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3366C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3366C3

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3366C3	#FFFFFF	#000000	##FFFFFF
##3366C3	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3370C6

Deuteranopia (green-blind)

#0763C1

Tritanopia (blue-blind)

#007C8B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3366c3;
/* rgb */ color: rgb(51, 102, 195);
/* oklch */ color: oklch(52.6% 0.156 261.2);

Tailwind

colors: {
  custom: {
    50: '#7e91d6',
    500: '#3366c3',
    950: '#000000',
  },
}

SCSS

$custom: #3366c3;
$custom-light: #7e91d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3366c3",
  "rgb": {
    "r": 51,
    "g": 102,
    "b": 195
  },
  "hsl": {
    "h": 218.75,
    "s": 58.537,
    "l": 48.235
  },
  "oklch": {
    "l": 0.52606,
    "c": 0.15571,
    "h": 261.2
  },
  "luminance": 0.14147
}

Semantic roles & 50–950 ramp

primary

#3366C3

secondary

#CCB386

accent

#AB46E2

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3366C3

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

Preview Lab → · Contrast checker → · Palette generator →