#3664BE#3664BE

#3664BE is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.9% C 0.150 H 262.2°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#3664BE
RGB	rgb(54, 100, 190)
HSL	hsl(220, 56%, 48%)
HSV	hsv(220, 72%, 75%)
CMYK	cmyk(71.6%, 47.4%, 0%, 25.5%)
CIE-LAB	lab(43.68, 15.18, -51.95)
CIE-LCH	lch(43.68, 54.12, 286.29°)
OKLab	oklab(51.95% -0.0205 -0.149)
OKLCH	oklch(51.95% 0.15 262.2)
XYZ	xyz(15.3694, 13.6147, 50.5231)
Luminance	0.1362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3664BE #BE9036

analogous

#36A8BE #3664BE #4C36BE

triadic

#3664BE #BE3664 #64BE36

tetradic

#3664BE #BE36A8 #BE9036 #36BE4C

square

#3664BE #BE36A8 #BE9036 #36BE4C

split-complementary

#3664BE #BE4C36 #A8BE36

monochromatic

#1B325F #284B8E #3664BE #6086D2 #8FAADF

Accessibility & contrast

On white

5.64

#3664BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3664BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3664BE

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3664BE	#FFFFFF	#000000	##FFFFFF
##3664BE	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346EC1

Deuteranopia (green-blind)

#1261BC

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3664be;
/* rgb */ color: rgb(54, 100, 190);
/* oklch */ color: oklch(51.9% 0.150 262.2);

Tailwind

colors: {
  custom: {
    50: '#7e8fd2',
    500: '#3664be',
    950: '#000000',
  },
}

SCSS

$custom: #3664be;
$custom-light: #7e8fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3664be",
  "rgb": {
    "r": 54,
    "g": 100,
    "b": 190
  },
  "hsl": {
    "h": 219.706,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.51949,
    "c": 0.15037,
    "h": 262.2
  },
  "luminance": 0.13616
}

Semantic roles & 50–950 ramp

primary

#3664BE

secondary

#CAB386

accent

#AC49DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3664BE

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

Preview Lab → · Contrast checker → · Palette generator →