#3863B3#3863B3

#3863B3 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.1% C 0.136 H 261.6°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3863B3
RGB	rgb(56, 99, 179)
HSL	hsl(219, 52%, 46%)
HSV	hsv(219, 69%, 70%)
CMYK	cmyk(68.7%, 44.7%, 0%, 29.8%)
CIE-LAB	lab(42.79, 12.07, -46.95)
CIE-LCH	lch(42.79, 48.48, 284.42°)
OKLab	oklab(51.07% -0.0198 -0.1342)
OKLCH	oklch(51.07% 0.136 261.6)
XYZ	xyz(14.2265, 13.0177, 44.4020)
Luminance	0.1302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3863B3 #B38838

analogous

#38A0B3 #3863B3 #4A38B3

triadic

#3863B3 #B33863 #63B338

tetradic

#3863B3 #B338A0 #B38838 #38B34A

square

#3863B3 #B338A0 #B38838 #38B34A

split-complementary

#3863B3 #B34A38 #A0B338

monochromatic

#1B2F56 #294984 #3863B3 #5C83CC #8BA7DB

Accessibility & contrast

On white

5.83

#3863B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3863B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3863B3

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3863B3	#FFFFFF	#000000	##FFFFFF
##3863B3	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6BB6

Deuteranopia (green-blind)

#2660B1

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3863b3;
/* rgb */ color: rgb(56, 99, 179);
/* oklch */ color: oklch(51.1% 0.136 261.6);

Tailwind

colors: {
  custom: {
    50: '#7d8eca',
    500: '#3863b3',
    950: '#000000',
  },
}

SCSS

$custom: #3863b3;
$custom-light: #7d8eca;
$custom-dark: #000000;

JSON

{
  "hex": "#3863b3",
  "rgb": {
    "r": 56,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 219.024,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.51071,
    "c": 0.1357,
    "h": 261.6
  },
  "luminance": 0.13019
}

Semantic roles & 50–950 ramp

primary

#3863B3

secondary

#C5AD82

accent

#AA4CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3863B3

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

Preview Lab → · Contrast checker → · Palette generator →