#3864D7#3864D7

#3864D7 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.9% C 0.184 H 265.0°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3864D7
RGB	rgb(56, 100, 215)
HSL	hsl(223, 67%, 53%)
HSV	hsv(223, 74%, 84%)
CMYK	cmyk(74%, 53.5%, 0%, 15.7%)
CIE-LAB	lab(45.44, 24.67, -63.48)
CIE-LCH	lch(45.44, 68.10, 291.24°)
OKLab	oklab(53.85% -0.0161 -0.1829)
OKLCH	oklch(53.85% 0.184 265)
XYZ	xyz(18.4495, 14.8594, 66.1726)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864D7 #D7AB38

analogous

#38B4D7 #3864D7 #5B38D7

triadic

#3864D7 #D73864 #64D738

tetradic

#3864D7 #D738B4 #D7AB38 #38D75B

square

#3864D7 #D738B4 #D7AB38 #38D75B

split-complementary

#3864D7 #D75B38 #B4D738

monochromatic

#19347C #234AAF #3864D7 #6B8CE1 #9EB3EB

Accessibility & contrast

On white

5.29

#3864D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#3864D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864D7

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864D7	#FFFFFF	#000000	##FFFFFF
##3864D7	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0373DB

Deuteranopia (green-blind)

#0065D5

Tritanopia (blue-blind)

#008094

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3864d7;
/* rgb */ color: rgb(56, 100, 215);
/* oklch */ color: oklch(53.9% 0.184 265.0);

Tailwind

colors: {
  custom: {
    50: '#848fe4',
    500: '#3864d7',
    950: '#000000',
  },
}

SCSS

$custom: #3864d7;
$custom-light: #848fe4;
$custom-dark: #000000;

JSON

{
  "hex": "#3864d7",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 215
  },
  "hsl": {
    "h": 223.396,
    "s": 66.527,
    "l": 53.137
  },
  "oklch": {
    "l": 0.53853,
    "c": 0.18355,
    "h": 265
  },
  "luminance": 0.14861
}

Semantic roles & 50–950 ramp

primary

#3864D7

secondary

#D8C593

accent

#BA3EE9

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0C16

muted

#7D7D84

Preview Lab

Preview with #3864D7

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

Preview Lab → · Contrast checker → · Palette generator →