#3864C5#3864C5

#3864C5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.5% C 0.159 H 263.5°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#3864C5
RGB	rgb(56, 100, 197)
HSL	hsl(221, 56%, 50%)
HSV	hsv(221, 72%, 77%)
CMYK	cmyk(71.6%, 49.2%, 0%, 22.7%)
CIE-LAB	lab(44.21, 18.05, -55.14)
CIE-LCH	lch(44.21, 58.01, 288.13°)
OKLab	oklab(52.53% -0.0179 -0.1583)
OKLCH	oklch(52.53% 0.159 263.5)
XYZ	xyz(16.2625, 13.9846, 54.6547)
Luminance	0.1399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864C5 #C59938

analogous

#38AAC5 #3864C5 #5338C5

triadic

#3864C5 #C53864 #64C538

tetradic

#3864C5 #C538AA #C59938 #38C553

square

#3864C5 #C538AA #C59938 #38C553

split-complementary

#3864C5 #C55338 #AAC538

monochromatic

#1D3466 #2A4C95 #3864C5 #6789D4 #96AEE1

Accessibility & contrast

On white

5.53

#3864C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#3864C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864C5

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864C5	#FFFFFF	#000000	##FFFFFF
##3864C5	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D6FC9

Deuteranopia (green-blind)

#0062C3

Tritanopia (blue-blind)

#007B8B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3864c5;
/* rgb */ color: rgb(56, 100, 197);
/* oklch */ color: oklch(52.5% 0.159 263.5);

Tailwind

colors: {
  custom: {
    50: '#808fd7',
    500: '#3864c5',
    950: '#000000',
  },
}

SCSS

$custom: #3864c5;
$custom-light: #808fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3864c5",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 197
  },
  "hsl": {
    "h": 221.277,
    "s": 55.731,
    "l": 49.608
  },
  "oklch": {
    "l": 0.52527,
    "c": 0.15931,
    "h": 263.5
  },
  "luminance": 0.13986
}

Semantic roles & 50–950 ramp

primary

#3864C5

secondary

#CDB98C

accent

#B049DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3864C5

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

Preview Lab → · Contrast checker → · Palette generator →