#3365CC#3365CC

#3365CC is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.0% C 0.169 H 262.6°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3365CC
RGB	rgb(51, 101, 204)
HSL	hsl(220, 60%, 50%)
HSV	hsv(220, 75%, 80%)
CMYK	cmyk(75%, 50.5%, 0%, 20%)
CIE-LAB	lab(44.76, 19.35, -58.30)
CIE-LCH	lch(44.76, 61.42, 288.36°)
OKLab	oklab(53.04% -0.0217 -0.1677)
OKLCH	oklch(53.04% 0.169 262.6)
XYZ	xyz(16.9141, 14.3689, 58.9971)
Luminance	0.1437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3365CC #CC9A33

analogous

#33B2CC #3365CC #4D33CC

triadic

#3365CC #CC3365 #65CC33

tetradic

#3365CC #CC33B2 #CC9A33 #33CC4D

square

#3365CC #CC33B2 #CC9A33 #33CC4D

split-complementary

#3365CC #CC4D33 #B2CC33

monochromatic

#1B356A #274D9B #3365CC #648AD8 #95AFE4

Accessibility & contrast

On white

5.42

#3365CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#3365CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3365CC

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3365CC	#FFFFFF	#000000	##FFFFFF
##3365CC	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2571D0

Deuteranopia (green-blind)

#0063CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3365cc;
/* rgb */ color: rgb(51, 101, 204);
/* oklch */ color: oklch(53.0% 0.169 262.6);

Tailwind

colors: {
  custom: {
    50: '#8090dc',
    500: '#3365cc',
    950: '#000000',
  },
}

SCSS

$custom: #3365cc;
$custom-light: #8090dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3365cc",
  "rgb": {
    "r": 51,
    "g": 101,
    "b": 204
  },
  "hsl": {
    "h": 220.392,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.53039,
    "c": 0.16907,
    "h": 262.6
  },
  "luminance": 0.14371
}

Semantic roles & 50–950 ramp

primary

#3365CC

secondary

#D0B98B

accent

#AF45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3365CC

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

Preview Lab → · Contrast checker → · Palette generator →