#3640BE#3640BE

#3640BE is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.194 H 272.2°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3640BE
RGB	rgb(54, 64, 190)
HSL	hsl(236, 56%, 48%)
HSV	hsv(236, 72%, 75%)
CMYK	cmyk(71.6%, 66.3%, 0%, 25.5%)
CIE-LAB	lab(34.33, 38.32, -67.13)
CIE-LCH	lch(34.33, 77.29, 299.72°)
OKLab	oklab(44.95% 0.0074 -0.194)
OKLCH	oklch(44.95% 0.194 272.2)
XYZ	xyz(12.6458, 8.1675, 49.6152)
Luminance	0.0817 (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

#3640BE #BEB436

analogous

#3684BE #3640BE #7036BE

triadic

#3640BE #BE3640 #40BE36

tetradic

#3640BE #BE3684 #BEB436 #36BE70

square

#3640BE #BE3684 #BEB436 #36BE70

split-complementary

#3640BE #BE7036 #84BE36

monochromatic

#1B205F #28308E #3640BE #6068D2 #8F95DF

Accessibility & contrast

On white

7.97

#3640BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3640BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3640BE

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3640BE	#FFFFFF	#000000	##FFFFFF
##3640BE	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3640be;
/* rgb */ color: rgb(54, 64, 190);
/* oklch */ color: oklch(44.9% 0.194 272.2);

Tailwind

colors: {
  custom: {
    50: '#8075d3',
    500: '#3640be',
    950: '#000000',
  },
}

SCSS

$custom: #3640be;
$custom-light: #8075d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3640be",
  "rgb": {
    "r": 54,
    "g": 64,
    "b": 190
  },
  "hsl": {
    "h": 235.588,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44947,
    "c": 0.19416,
    "h": 272.2
  },
  "luminance": 0.08169
}

Semantic roles & 50–950 ramp

primary

#3640BE

secondary

#CAC586

accent

#D449DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3640BE

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

Preview Lab → · Contrast checker → · Palette generator →