#3643BA#3643BA

#3643BA is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.1% C 0.185 H 271.8°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3643BA
RGB	rgb(54, 67, 186)
HSL	hsl(234, 55%, 47%)
HSV	hsv(234, 71%, 73%)
CMYK	cmyk(71%, 64%, 0%, 27.1%)
CIE-LAB	lab(34.69, 35.04, -64.19)
CIE-LCH	lch(34.69, 73.13, 298.63°)
OKLab	oklab(45.1% 0.0057 -0.1854)
OKLCH	oklch(45.1% 0.185 271.8)
XYZ	xyz(12.3884, 8.3425, 47.4022)
Luminance	0.0834 (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

#3643BA #BAAD36

analogous

#3685BA #3643BA #6B36BA

triadic

#3643BA #BA3643 #43BA36

tetradic

#3643BA #BA3685 #BAAD36 #36BA6B

square

#3643BA #BA3685 #BAAD36 #36BA6B

split-complementary

#3643BA #BA6B36 #85BA36

monochromatic

#1A215B #28328B #3643BA #5D68D0 #8D95DE

Accessibility & contrast

On white

7.87

#3643BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3643BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3643BA

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3643BA	#FFFFFF	#000000	##FFFFFF
##3643BA	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	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: #3643ba;
/* rgb */ color: rgb(54, 67, 186);
/* oklch */ color: oklch(45.1% 0.185 271.8);

Tailwind

colors: {
  custom: {
    50: '#7f77d0',
    500: '#3643ba',
    950: '#000000',
  },
}

SCSS

$custom: #3643ba;
$custom-light: #7f77d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3643ba",
  "rgb": {
    "r": 54,
    "g": 67,
    "b": 186
  },
  "hsl": {
    "h": 234.091,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.45099,
    "c": 0.18549,
    "h": 271.8
  },
  "luminance": 0.08344
}

Semantic roles & 50–950 ramp

primary

#3643BA

secondary

#C8C184

accent

#D049DE

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3643BA

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

Preview Lab → · Contrast checker → · Palette generator →