#3864D9#3864D9

#3864D9 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.0% C 0.186 H 265.1°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#3864D9
RGB	rgb(56, 100, 217)
HSL	hsl(224, 68%, 54%)
HSV	hsv(224, 74%, 85%)
CMYK	cmyk(74.2%, 53.9%, 0%, 14.9%)
CIE-LAB	lab(45.58, 25.40, -64.39)
CIE-LCH	lch(45.58, 69.22, 291.53°)
OKLab	oklab(54.01% -0.0159 -0.1855)
OKLCH	oklch(54.01% 0.186 265.1)
XYZ	xyz(18.7080, 14.9628, 67.5343)
Luminance	0.1497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864D9 #D9AD38

analogous

#38B5D9 #3864D9 #5C38D9

triadic

#3864D9 #D93864 #64D938

tetradic

#3864D9 #D938B5 #D9AD38 #38D95C

square

#3864D9 #D938B5 #D9AD38 #38D95C

split-complementary

#3864D9 #D95C38 #B5D938

monochromatic

#18347E #2249B2 #3864D9 #6B8CE3 #9FB4ED

Accessibility & contrast

On white

5.26

#3864D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#3864D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864D9

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864D9	#FFFFFF	#000000	##FFFFFF
##3864D9	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074DD

Deuteranopia (green-blind)

#0065D7

Tritanopia (blue-blind)

#008195

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3864d9;
/* rgb */ color: rgb(56, 100, 217);
/* oklch */ color: oklch(54.0% 0.186 265.1);

Tailwind

colors: {
  custom: {
    50: '#848fe6',
    500: '#3864d9',
    950: '#000000',
  },
}

SCSS

$custom: #3864d9;
$custom-light: #848fe6;
$custom-dark: #000000;

JSON

{
  "hex": "#3864d9",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 217
  },
  "hsl": {
    "h": 223.602,
    "s": 67.932,
    "l": 53.529
  },
  "oklch": {
    "l": 0.54006,
    "c": 0.1862,
    "h": 265.1
  },
  "luminance": 0.14965
}

Semantic roles & 50–950 ramp

primary

#3864D9

secondary

#D9C694

accent

#BB3DEB

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0D0C16

muted

#7D7D84

Preview Lab

Preview with #3864D9

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

Preview Lab → · Contrast checker → · Palette generator →