#3863BE#3863BE

#3863BE is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.8% C 0.151 H 263.1°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#3863BE
RGB	rgb(56, 99, 190)
HSL	hsl(221, 54%, 48%)
HSV	hsv(221, 71%, 75%)
CMYK	cmyk(70.5%, 47.9%, 0%, 25.5%)
CIE-LAB	lab(43.48, 16.11, -52.26)
CIE-LCH	lch(43.48, 54.69, 287.14°)
OKLab	oklab(51.82% -0.018 -0.1499)
OKLCH	oklch(51.82% 0.151 263.1)
XYZ	xyz(15.3837, 13.4805, 50.4965)
Luminance	0.1348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3863BE #BE9338

analogous

#38A6BE #3863BE #5038BE

triadic

#3863BE #BE3863 #63BE38

tetradic

#3863BE #BE38A6 #BE9338 #38BE50

square

#3863BE #BE38A6 #BE9338 #38BE50

split-complementary

#3863BE #BE5038 #A6BE38

monochromatic

#1C325F #2A4A8F #3863BE #6286D1 #92AADF

Accessibility & contrast

On white

5.68

#3863BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3863BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3863BE

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3863BE	#FFFFFF	#000000	##FFFFFF
##3863BE	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)

#326DC1

Deuteranopia (green-blind)

#0E61BC

Tritanopia (blue-blind)

#007887

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3863be;
/* rgb */ color: rgb(56, 99, 190);
/* oklch */ color: oklch(51.8% 0.151 263.1);

Tailwind

colors: {
  custom: {
    50: '#7f8ed2',
    500: '#3863be',
    950: '#000000',
  },
}

SCSS

$custom: #3863be;
$custom-light: #7f8ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#3863be",
  "rgb": {
    "r": 56,
    "g": 99,
    "b": 190
  },
  "hsl": {
    "h": 220.746,
    "s": 54.472,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51821,
    "c": 0.15094,
    "h": 263.1
  },
  "luminance": 0.13482
}

Semantic roles & 50–950 ramp

primary

#3863BE

secondary

#CAB588

accent

#AE4ADE

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3863BE

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

Preview Lab → · Contrast checker → · Palette generator →