#3643BE#3643BE

#3643BE is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.191 H 271.6°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3643BE
RGB	rgb(54, 67, 190)
HSL	hsl(234, 56%, 48%)
HSV	hsv(234, 72%, 75%)
CMYK	cmyk(71.6%, 64.7%, 0%, 25.5%)
CIE-LAB	lab(35.03, 36.45, -65.98)
CIE-LCH	lch(35.03, 75.37, 298.92°)
OKLab	oklab(45.46% 0.0055 -0.1906)
OKLCH	oklch(45.46% 0.191 271.6)
XYZ	xyz(12.8196, 8.5150, 49.6732)
Luminance	0.0852 (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

#3643BE #BEB136

analogous

#3687BE #3643BE #6D36BE

triadic

#3643BE #BE3643 #43BE36

tetradic

#3643BE #BE3687 #BEB136 #36BE6D

square

#3643BE #BE3687 #BEB136 #36BE6D

split-complementary

#3643BE #BE6D36 #87BE36

monochromatic

#1B215F #28328E #3643BE #606AD2 #8F97DF

Accessibility & contrast

On white

7.77

#3643BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3643BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3643BE

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3643BE	#FFFFFF	#000000	##FFFFFF
##3643BE	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C2

Deuteranopia (green-blind)

#004CBC

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3643be;
/* rgb */ color: rgb(54, 67, 190);
/* oklch */ color: oklch(45.5% 0.191 271.6);

Tailwind

colors: {
  custom: {
    50: '#8077d3',
    500: '#3643be',
    950: '#000000',
  },
}

SCSS

$custom: #3643be;
$custom-light: #8077d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3643be",
  "rgb": {
    "r": 54,
    "g": 67,
    "b": 190
  },
  "hsl": {
    "h": 234.265,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4546,
    "c": 0.19071,
    "h": 271.6
  },
  "luminance": 0.08516
}

Semantic roles & 50–950 ramp

primary

#3643BE

secondary

#CAC386

accent

#D149DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3643BE

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

Preview Lab → · Contrast checker → · Palette generator →