#3644C4#3644C4

#3644C4 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.2% C 0.197 H 271.3°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#3644C4
RGB	rgb(54, 68, 196)
HSL	hsl(234, 57%, 49%)
HSV	hsv(234, 72%, 77%)
CMYK	cmyk(72.4%, 65.3%, 0%, 23.1%)
CIE-LAB	lab(35.80, 37.93, -68.24)
CIE-LCH	lch(35.80, 78.07, 299.07°)
OKLab	oklab(46.18% 0.0044 -0.1972)
OKLCH	oklch(46.18% 0.197 271.3)
XYZ	xyz(13.5489, 8.9026, 53.2182)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3644C4 #C4B636

analogous

#368BC4 #3644C4 #6F36C4

triadic

#3644C4 #C43644 #44C436

tetradic

#3644C4 #C4368B #C4B636 #36C46F

square

#3644C4 #C4368B #C4B636 #36C46F

split-complementary

#3644C4 #C46F36 #8BC436

monochromatic

#1C2364 #293394 #3644C4 #636ED4 #939BE1

Accessibility & contrast

On white

7.55

#3644C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3644C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3644C4

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3644C4	#FFFFFF	#000000	##FFFFFF
##3644C4	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC8

Deuteranopia (green-blind)

#004EC2

Tritanopia (blue-blind)

#00667E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3644c4;
/* rgb */ color: rgb(54, 68, 196);
/* oklch */ color: oklch(46.2% 0.197 271.3);

Tailwind

colors: {
  custom: {
    50: '#8178d7',
    500: '#3644c4',
    950: '#000000',
  },
}

SCSS

$custom: #3644c4;
$custom-light: #8178d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3644c4",
  "rgb": {
    "r": 54,
    "g": 68,
    "b": 196
  },
  "hsl": {
    "h": 234.085,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.4618,
    "c": 0.1973,
    "h": 271.3
  },
  "luminance": 0.08904
}

Semantic roles & 50–950 ramp

primary

#3644C4

secondary

#CCC689

accent

#D148E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3644C4

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

Preview Lab → · Contrast checker → · Palette generator →