#3664CA#3664CA

#3664CA is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.8% C 0.167 H 263.5°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3664CA
RGB	rgb(54, 100, 202)
HSL	hsl(221, 58%, 50%)
HSV	hsv(221, 73%, 79%)
CMYK	cmyk(73.3%, 50.5%, 0%, 20.8%)
CIE-LAB	lab(44.46, 19.63, -57.62)
CIE-LCH	lch(44.46, 60.87, 288.81°)
OKLab	oklab(52.8% -0.0189 -0.1656)
OKLCH	oklch(52.8% 0.167 263.5)
XYZ	xyz(16.7354, 14.1611, 57.7170)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3664CA #CA9C36

analogous

#36AECA #3664CA #5236CA

triadic

#3664CA #CA3664 #64CA36

tetradic

#3664CA #CA36AE #CA9C36 #36CA52

square

#3664CA #CA36AE #CA9C36 #36CA52

split-complementary

#3664CA #CA5236 #AECA36

monochromatic

#1C346A #294C9A #3664CA #6689D7 #97AFE4

Accessibility & contrast

On white

5.48

#3664CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3664CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3664CA

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3664CA	#FFFFFF	#000000	##FFFFFF
##3664CA	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)

#2570CE

Deuteranopia (green-blind)

#0063C8

Tritanopia (blue-blind)

#007C8D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3664ca;
/* rgb */ color: rgb(54, 100, 202);
/* oklch */ color: oklch(52.8% 0.167 263.5);

Tailwind

colors: {
  custom: {
    50: '#808fdb',
    500: '#3664ca',
    950: '#000000',
  },
}

SCSS

$custom: #3664ca;
$custom-light: #808fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3664ca",
  "rgb": {
    "r": 54,
    "g": 100,
    "b": 202
  },
  "hsl": {
    "h": 221.351,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52803,
    "c": 0.16671,
    "h": 263.5
  },
  "luminance": 0.14163
}

Semantic roles & 50–950 ramp

primary

#3664CA

secondary

#CFBA8D

accent

#B146E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3664CA

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

Preview Lab → · Contrast checker → · Palette generator →