#3864BA#3864BA

#3864BA is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.8% C 0.144 H 262.2°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#3864BA
RGB	rgb(56, 100, 186)
HSL	hsl(220, 54%, 47%)
HSV	hsv(220, 70%, 73%)
CMYK	cmyk(69.9%, 46.2%, 0%, 27.1%)
CIE-LAB	lab(43.51, 14.00, -49.89)
CIE-LCH	lch(43.51, 51.82, 285.67°)
OKLab	oklab(51.76% -0.0196 -0.1429)
OKLCH	oklch(51.76% 0.144 262.2)
XYZ	xyz(15.0478, 13.4987, 48.2573)
Luminance	0.1350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864BA #BA8E38

analogous

#38A5BA #3864BA #4D38BA

triadic

#3864BA #BA3864 #64BA38

tetradic

#3864BA #BA38A5 #BA8E38 #38BA4D

square

#3864BA #BA38A5 #BA8E38 #38BA4D

split-complementary

#3864BA #BA4D38 #A5BA38

monochromatic

#1C315C #2A4B8B #3864BA #6086CF #8FAADD

Accessibility & contrast

On white

5.68

#3864BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3864BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864BA

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864BA	#FFFFFF	#000000	##FFFFFF
##3864BA	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386DBD

Deuteranopia (green-blind)

#1D61B8

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3864ba;
/* rgb */ color: rgb(56, 100, 186);
/* oklch */ color: oklch(51.8% 0.144 262.2);

Tailwind

colors: {
  custom: {
    50: '#7e8fcf',
    500: '#3864ba',
    950: '#000000',
  },
}

SCSS

$custom: #3864ba;
$custom-light: #7e8fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3864ba",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 186
  },
  "hsl": {
    "h": 219.692,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5176,
    "c": 0.1442,
    "h": 262.2
  },
  "luminance": 0.135
}

Semantic roles & 50–950 ramp

primary

#3864BA

secondary

#C8B286

accent

#AC4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3864BA

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

Preview Lab → · Contrast checker → · Palette generator →