#3643CF#3643CF

#3643CF is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.0% C 0.212 H 271.1°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#3643CF
RGB	rgb(54, 67, 207)
HSL	hsl(235, 61%, 51%)
HSV	hsv(235, 74%, 81%)
CMYK	cmyk(73.9%, 67.6%, 0%, 18.8%)
CIE-LAB	lab(36.56, 42.37, -73.38)
CIE-LCH	lch(36.56, 84.73, 300.00°)
OKLab	oklab(47.04% 0.0041 -0.2123)
OKLCH	oklch(47.04% 0.212 271.1)
XYZ	xyz(14.7871, 9.3020, 60.0355)
Luminance	0.0930 (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

#3643CF #CFC236

analogous

#368FCF #3643CF #7536CF

triadic

#3643CF #CF3643 #43CF36

tetradic

#3643CF #CF368F #CFC236 #36CF75

square

#3643CF #CF368F #CFC236 #36CF75

split-complementary

#3643CF #CF7536 #8FCF36

monochromatic

#1B2270 #2731A1 #3643CF #6771DB #999FE7

Accessibility & contrast

On white

7.34

#3643CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#3643CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3643CF

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3643CF	#FFFFFF	#000000	##FFFFFF
##3643CF	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD3

Deuteranopia (green-blind)

#004FCC

Tritanopia (blue-blind)

#006983

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3643cf;
/* rgb */ color: rgb(54, 67, 207);
/* oklch */ color: oklch(47.0% 0.212 271.1);

Tailwind

colors: {
  custom: {
    50: '#8477df',
    500: '#3643cf',
    950: '#000000',
  },
}

SCSS

$custom: #3643cf;
$custom-light: #8477df;
$custom-dark: #000000;

JSON

{
  "hex": "#3643cf",
  "rgb": {
    "r": 54,
    "g": 67,
    "b": 207
  },
  "hsl": {
    "h": 234.902,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.47038,
    "c": 0.21233,
    "h": 271.1
  },
  "luminance": 0.09304
}

Semantic roles & 50–950 ramp

primary

#3643CF

secondary

#D2CC8F

accent

#D743E5

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3643CF

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

Preview Lab → · Contrast checker → · Palette generator →