#3864B2#3864B2

#3864B2 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.2% C 0.133 H 260.9°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#3864B2
RGB	rgb(56, 100, 178)
HSL	hsl(218, 52%, 46%)
HSV	hsv(218, 69%, 70%)
CMYK	cmyk(68.5%, 43.8%, 0%, 30.2%)
CIE-LAB	lab(43.02, 11.06, -46.00)
CIE-LCH	lch(43.02, 47.32, 283.52°)
OKLab	oklab(51.23% -0.021 -0.1314)
OKLCH	oklch(51.23% 0.133 260.9)
XYZ	xyz(14.2211, 13.1680, 43.9031)
Luminance	0.1317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864B2 #B28638

analogous

#38A1B2 #3864B2 #4938B2

triadic

#3864B2 #B23864 #64B238

tetradic

#3864B2 #B238A1 #B28638 #38B249

square

#3864B2 #B238A1 #B28638 #38B249

split-complementary

#3864B2 #B24938 #A1B238

monochromatic

#1B3055 #294A83 #3864B2 #5C84CC #8AA7DA

Accessibility & contrast

On white

5.78

#3864B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3864B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864B2

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864B2	#FFFFFF	#000000	##FFFFFF
##3864B2	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6CB5

Deuteranopia (green-blind)

#2A60B0

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3864b2;
/* rgb */ color: rgb(56, 100, 178);
/* oklch */ color: oklch(51.2% 0.133 260.9);

Tailwind

colors: {
  custom: {
    50: '#7c8fc9',
    500: '#3864b2',
    950: '#000000',
  },
}

SCSS

$custom: #3864b2;
$custom-light: #7c8fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3864b2",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 178
  },
  "hsl": {
    "h": 218.361,
    "s": 52.137,
    "l": 45.882
  },
  "oklch": {
    "l": 0.51225,
    "c": 0.13312,
    "h": 260.9
  },
  "luminance": 0.13169
}

Semantic roles & 50–950 ramp

primary

#3864B2

secondary

#C5AC81

accent

#A84CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3864B2

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

Preview Lab → · Contrast checker → · Palette generator →