#3647BC#3647BC

#3647BC is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.0% C 0.183 H 270.9°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#3647BC
RGB	rgb(54, 71, 188)
HSL	hsl(232, 55%, 47%)
HSV	hsv(232, 71%, 74%)
CMYK	cmyk(71.3%, 62.2%, 0%, 26.3%)
CIE-LAB	lab(35.83, 33.20, -63.50)
CIE-LCH	lch(35.83, 71.65, 297.61°)
OKLab	oklab(45.99% 0.0028 -0.1833)
OKLCH	oklch(45.99% 0.183 270.9)
XYZ	xyz(12.8486, 8.9203, 48.6119)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.67

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3647BC #BCAB36

analogous

#368ABC #3647BC #6836BC

triadic

#3647BC #BC3647 #47BC36

tetradic

#3647BC #BC368A #BCAB36 #36BC68

square

#3647BC #BC368A #BCAB36 #36BC68

split-complementary

#3647BC #BC6836 #8ABC36

monochromatic

#1B235D #28358C #3647BC #5E6DD1 #8E98DF

Accessibility & contrast

On white

7.54

#3647BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3647BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3647BC

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3647BC	#FFFFFF	#000000	##FFFFFF
##3647BC	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC0

Deuteranopia (green-blind)

#004EBA

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3647bc;
/* rgb */ color: rgb(54, 71, 188);
/* oklch */ color: oklch(46.0% 0.183 270.9);

Tailwind

colors: {
  custom: {
    50: '#7f7ad1',
    500: '#3647bc',
    950: '#000000',
  },
}

SCSS

$custom: #3647bc;
$custom-light: #7f7ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3647bc",
  "rgb": {
    "r": 54,
    "g": 71,
    "b": 188
  },
  "hsl": {
    "h": 232.388,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.45993,
    "c": 0.18335,
    "h": 270.9
  },
  "luminance": 0.08922
}

Semantic roles & 50–950 ramp

primary

#3647BC

secondary

#C9C085

accent

#CC49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #3647BC

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

Preview Lab → · Contrast checker → · Palette generator →