#3644BA#3644BA

#3644BA is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.3% C 0.184 H 271.6°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3644BA
RGB	rgb(54, 68, 186)
HSL	hsl(234, 55%, 47%)
HSV	hsv(234, 71%, 73%)
CMYK	cmyk(71%, 63.4%, 0%, 27.1%)
CIE-LAB	lab(34.93, 34.40, -63.79)
CIE-LCH	lch(34.93, 72.48, 298.34°)
OKLab	oklab(45.28% 0.005 -0.1842)
OKLCH	oklch(45.28% 0.184 271.6)
XYZ	xyz(12.4484, 8.4624, 47.4222)
Luminance	0.0846 (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

#3644BA #BAAC36

analogous

#3686BA #3644BA #6A36BA

triadic

#3644BA #BA3644 #44BA36

tetradic

#3644BA #BA3686 #BAAC36 #36BA6A

square

#3644BA #BA3686 #BAAC36 #36BA6A

split-complementary

#3644BA #BA6A36 #86BA36

monochromatic

#1A215B #28338B #3644BA #5D69D0 #8D95DE

Accessibility & contrast

On white

7.80

#3644BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3644BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3644BA

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3644BA	#FFFFFF	#000000	##FFFFFF
##3644BA	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006278

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3644ba;
/* rgb */ color: rgb(54, 68, 186);
/* oklch */ color: oklch(45.3% 0.184 271.6);

Tailwind

colors: {
  custom: {
    50: '#7f78d0',
    500: '#3644ba',
    950: '#000000',
  },
}

SCSS

$custom: #3644ba;
$custom-light: #7f78d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3644ba",
  "rgb": {
    "r": 54,
    "g": 68,
    "b": 186
  },
  "hsl": {
    "h": 233.636,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.45277,
    "c": 0.1843,
    "h": 271.6
  },
  "luminance": 0.08464
}

Semantic roles & 50–950 ramp

primary

#3644BA

secondary

#C8C184

accent

#CF49DE

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3644BA

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

Preview Lab → · Contrast checker → · Palette generator →