#3864C4#3864C4

#3864C4 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.5% C 0.158 H 263.4°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#3864C4
RGB	rgb(56, 100, 196)
HSL	hsl(221, 56%, 49%)
HSV	hsv(221, 71%, 77%)
CMYK	cmyk(71.4%, 49%, 0%, 23.1%)
CIE-LAB	lab(44.15, 17.68, -54.66)
CIE-LCH	lch(44.15, 57.45, 287.92°)
OKLab	oklab(52.46% -0.0181 -0.1569)
OKLCH	oklch(52.46% 0.158 263.4)
XYZ	xyz(16.1483, 13.9389, 54.0533)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864C4 #C49838

analogous

#38AAC4 #3864C4 #5238C4

triadic

#3864C4 #C43864 #64C438

tetradic

#3864C4 #C438AA #C49838 #38C452

square

#3864C4 #C438AA #C49838 #38C452

split-complementary

#3864C4 #C45238 #AAC438

monochromatic

#1D3365 #2A4C94 #3864C4 #6688D3 #96ADE1

Accessibility & contrast

On white

5.54

#3864C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3864C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864C4

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864C4	#FFFFFF	#000000	##FFFFFF
##3864C4	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E6FC8

Deuteranopia (green-blind)

#0062C2

Tritanopia (blue-blind)

#007B8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3864c4;
/* rgb */ color: rgb(56, 100, 196);
/* oklch */ color: oklch(52.5% 0.158 263.4);

Tailwind

colors: {
  custom: {
    50: '#808fd6',
    500: '#3864c4',
    950: '#000000',
  },
}

SCSS

$custom: #3864c4;
$custom-light: #808fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3864c4",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 196
  },
  "hsl": {
    "h": 221.143,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52456,
    "c": 0.15795,
    "h": 263.4
  },
  "luminance": 0.13941
}

Semantic roles & 50–950 ramp

primary

#3864C4

secondary

#CCB88C

accent

#B049DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3864C4

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

Preview Lab → · Contrast checker → · Palette generator →