#3644AE#3644AE

#3644AE is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.2% C 0.168 H 271.8°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3644AE
RGB	rgb(54, 68, 174)
HSL	hsl(233, 53%, 45%)
HSV	hsv(233, 69%, 68%)
CMYK	cmyk(69%, 60.9%, 0%, 31.8%)
CIE-LAB	lab(33.93, 30.11, -58.32)
CIE-LCH	lch(33.93, 65.64, 297.31°)
OKLab	oklab(44.23% 0.0054 -0.1682)
OKLCH	oklch(44.23% 0.168 271.8)
XYZ	xyz(11.2258, 7.9734, 40.9836)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3644AE #AEA036

analogous

#3680AE #3644AE #6436AE

triadic

#3644AE #AE3644 #44AE36

tetradic

#3644AE #AE3680 #AEA036 #36AE64

square

#3644AE #AE3680 #AEA036 #36AE64

split-complementary

#3644AE #AE6436 #80AE36

monochromatic

#191F51 #28327F #3644AE #5664CB #858FD9

Accessibility & contrast

On white

8.09

#3644AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3644AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3644AE

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3644AE	#FFFFFF	#000000	##FFFFFF
##3644AE	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B1

Deuteranopia (green-blind)

#004AAC

Tritanopia (blue-blind)

#005F72

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3644ae;
/* rgb */ color: rgb(54, 68, 174);
/* oklch */ color: oklch(44.2% 0.168 271.8);

Tailwind

colors: {
  custom: {
    50: '#7c77c7',
    500: '#3644ae',
    950: '#000000',
  },
}

SCSS

$custom: #3644ae;
$custom-light: #7c77c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3644ae",
  "rgb": {
    "r": 54,
    "g": 68,
    "b": 174
  },
  "hsl": {
    "h": 233,
    "s": 52.632,
    "l": 44.706
  },
  "oklch": {
    "l": 0.44228,
    "c": 0.16827,
    "h": 271.8
  },
  "luminance": 0.07975
}

Semantic roles & 50–950 ramp

primary

#3644AE

secondary

#C3BB7D

accent

#CB4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3644AE

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

Preview Lab → · Contrast checker → · Palette generator →