#3864B6#3864B6

#3864B6 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.5% C 0.139 H 261.6°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3864B6
RGB	rgb(56, 100, 182)
HSL	hsl(219, 53%, 47%)
HSV	hsv(219, 69%, 71%)
CMYK	cmyk(69.2%, 45.1%, 0%, 28.6%)
CIE-LAB	lab(43.26, 12.53, -47.96)
CIE-LCH	lch(43.26, 49.57, 284.64°)
OKLab	oklab(51.49% -0.0202 -0.1372)
OKLCH	oklch(51.49% 0.139 261.6)
XYZ	xyz(14.6286, 13.3310, 46.0491)
Luminance	0.1333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864B6 #B68A38

analogous

#38A3B6 #3864B6 #4B38B6

triadic

#3864B6 #B63864 #64B638

tetradic

#3864B6 #B638A3 #B68A38 #38B64B

square

#3864B6 #B638A3 #B68A38 #38B64B

split-complementary

#3864B6 #B64B38 #A3B638

monochromatic

#1B3158 #2A4A87 #3864B6 #5E85CD #8DA8DC

Accessibility & contrast

On white

5.73

#3864B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3864B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864B6

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864B6	#FFFFFF	#000000	##FFFFFF
##3864B6	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6CB9

Deuteranopia (green-blind)

#2461B4

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3864b6;
/* rgb */ color: rgb(56, 100, 182);
/* oklch */ color: oklch(51.5% 0.139 261.6);

Tailwind

colors: {
  custom: {
    50: '#7d8fcc',
    500: '#3864b6',
    950: '#000000',
  },
}

SCSS

$custom: #3864b6;
$custom-light: #7d8fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3864b6",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 182
  },
  "hsl": {
    "h": 219.048,
    "s": 52.941,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5149,
    "c": 0.13867,
    "h": 261.6
  },
  "luminance": 0.13332
}

Semantic roles & 50–950 ramp

primary

#3864B6

secondary

#C6AF84

accent

#AA4BDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3864B6

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

Preview Lab → · Contrast checker → · Palette generator →