#3863B8#3863B8

#3863B8 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.4% C 0.143 H 262.4°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3863B8
RGB	rgb(56, 99, 184)
HSL	hsl(220, 53%, 47%)
HSV	hsv(220, 70%, 72%)
CMYK	cmyk(69.6%, 46.2%, 0%, 27.8%)
CIE-LAB	lab(43.10, 13.91, -49.38)
CIE-LCH	lch(43.10, 51.30, 285.73°)
OKLab	oklab(51.41% -0.019 -0.1414)
OKLCH	oklch(51.41% 0.143 262.4)
XYZ	xyz(14.7414, 13.2236, 47.1136)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3863B8 #B88D38

analogous

#38A3B8 #3863B8 #4D38B8

triadic

#3863B8 #B83863 #63B838

tetradic

#3863B8 #B838A3 #B88D38 #38B84D

square

#3863B8 #B838A3 #B88D38 #38B84D

split-complementary

#3863B8 #B84D38 #A3B838

monochromatic

#1B315A #2A4A89 #3863B8 #5F84CE #8EA8DD

Accessibility & contrast

On white

5.76

#3863B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3863B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3863B8

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3863B8	#FFFFFF	#000000	##FFFFFF
##3863B8	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386CBB

Deuteranopia (green-blind)

#1E60B6

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3863b8;
/* rgb */ color: rgb(56, 99, 184);
/* oklch */ color: oklch(51.4% 0.143 262.4);

Tailwind

colors: {
  custom: {
    50: '#7e8ece',
    500: '#3863b8',
    950: '#000000',
  },
}

SCSS

$custom: #3863b8;
$custom-light: #7e8ece;
$custom-dark: #000000;

JSON

{
  "hex": "#3863b8",
  "rgb": {
    "r": 56,
    "g": 99,
    "b": 184
  },
  "hsl": {
    "h": 219.844,
    "s": 53.333,
    "l": 47.059
  },
  "oklch": {
    "l": 0.51407,
    "c": 0.14265,
    "h": 262.4
  },
  "luminance": 0.13225
}

Semantic roles & 50–950 ramp

primary

#3863B8

secondary

#C7B185

accent

#AC4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3863B8

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

Preview Lab → · Contrast checker → · Palette generator →