#3644BD#3644BD

#3644BD is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.5% C 0.188 H 271.5°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#3644BD
RGB	rgb(54, 68, 189)
HSL	hsl(234, 56%, 48%)
HSV	hsv(234, 71%, 74%)
CMYK	cmyk(71.4%, 64%, 0%, 25.9%)
CIE-LAB	lab(35.19, 35.46, -65.14)
CIE-LCH	lch(35.19, 74.17, 298.57°)
OKLab	oklab(45.55% 0.0049 -0.1882)
OKLCH	oklch(45.55% 0.188 271.5)
XYZ	xyz(12.7706, 8.5914, 49.1195)
Luminance	0.0859 (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

#3644BD #BDAF36

analogous

#3687BD #3644BD #6C36BD

triadic

#3644BD #BD3644 #44BD36

tetradic

#3644BD #BD3687 #BDAF36 #36BD6C

square

#3644BD #BD3687 #BDAF36 #36BD6C

split-complementary

#3644BD #BD6C36 #87BD36

monochromatic

#1B225E #28338D #3644BD #5F6BD1 #8F97DF

Accessibility & contrast

On white

7.72

#3644BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3644BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3644BD

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3644BD	#FFFFFF	#000000	##FFFFFF
##3644BD	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C1

Deuteranopia (green-blind)

#004DBB

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3644bd;
/* rgb */ color: rgb(54, 68, 189);
/* oklch */ color: oklch(45.5% 0.188 271.5);

Tailwind

colors: {
  custom: {
    50: '#8078d2',
    500: '#3644bd',
    950: '#000000',
  },
}

SCSS

$custom: #3644bd;
$custom-light: #8078d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3644bd",
  "rgb": {
    "r": 54,
    "g": 68,
    "b": 189
  },
  "hsl": {
    "h": 233.778,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45545,
    "c": 0.18823,
    "h": 271.5
  },
  "luminance": 0.08593
}

Semantic roles & 50–950 ramp

primary

#3644BD

secondary

#C9C285

accent

#CF49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3644BD

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

Preview Lab → · Contrast checker → · Palette generator →