#3864D3#3864D3

#3864D3 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.6% C 0.178 H 264.7°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3864D3
RGB	rgb(56, 100, 211)
HSL	hsl(223, 64%, 52%)
HSV	hsv(223, 73%, 83%)
CMYK	cmyk(73.5%, 52.6%, 0%, 17.3%)
CIE-LAB	lab(45.16, 23.20, -61.65)
CIE-LCH	lch(45.16, 65.87, 290.62°)
OKLab	oklab(53.55% -0.0164 -0.1775)
OKLCH	oklch(53.55% 0.178 264.7)
XYZ	xyz(17.9418, 14.6563, 63.4988)
Luminance	0.1466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864D3 #D3A738

analogous

#38B1D3 #3864D3 #5A38D3

triadic

#3864D3 #D33864 #64D338

tetradic

#3864D3 #D338B1 #D3A738 #38D35A

square

#3864D3 #D338B1 #D3A738 #38D35A

split-complementary

#3864D3 #D35A38 #B1D338

monochromatic

#1A3476 #254BA9 #3864D3 #6A8BDE #9CB2E9

Accessibility & contrast

On white

5.34

#3864D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3864D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864D3

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864D3	#FFFFFF	#000000	##FFFFFF
##3864D3	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1372D7

Deuteranopia (green-blind)

#0064D1

Tritanopia (blue-blind)

#007F92

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3864d3;
/* rgb */ color: rgb(56, 100, 211);
/* oklch */ color: oklch(53.6% 0.178 264.7);

Tailwind

colors: {
  custom: {
    50: '#838fe1',
    500: '#3864d3',
    950: '#000000',
  },
}

SCSS

$custom: #3864d3;
$custom-light: #838fe1;
$custom-dark: #000000;

JSON

{
  "hex": "#3864d3",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 211
  },
  "hsl": {
    "h": 222.968,
    "s": 63.786,
    "l": 52.353
  },
  "oklch": {
    "l": 0.53551,
    "c": 0.17823,
    "h": 264.7
  },
  "luminance": 0.14658
}

Semantic roles & 50–950 ramp

primary

#3864D3

secondary

#D5C292

accent

#B841E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3864D3

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

Preview Lab → · Contrast checker → · Palette generator →