#3863BB#3863BB

#3863BB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.6% C 0.147 H 262.8°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3863BB
RGB	rgb(56, 99, 187)
HSL	hsl(220, 54%, 48%)
HSV	hsv(220, 70%, 73%)
CMYK	cmyk(70.1%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.29, 15.01, -50.82)
CIE-LCH	lch(43.29, 52.99, 286.45°)
OKLab	oklab(51.61% -0.0185 -0.1456)
OKLCH	oklch(51.61% 0.147 262.8)
XYZ	xyz(15.0592, 13.3507, 48.7874)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3863BB #BB9038

analogous

#38A5BB #3863BB #4E38BB

triadic

#3863BB #BB3863 #63BB38

tetradic

#3863BB #BB38A5 #BB9038 #38BB4E

square

#3863BB #BB38A5 #BB9038 #38BB4E

split-complementary

#3863BB #BB4E38 #A5BB38

monochromatic

#1C315D #2A4A8C #3863BB #6185D0 #90A9DE

Accessibility & contrast

On white

5.72

#3863BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3863BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3863BB

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3863BB	#FFFFFF	#000000	##FFFFFF
##3863BB	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356DBE

Deuteranopia (green-blind)

#1761B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3863bb;
/* rgb */ color: rgb(56, 99, 187);
/* oklch */ color: oklch(51.6% 0.147 262.8);

Tailwind

colors: {
  custom: {
    50: '#7e8ed0',
    500: '#3863bb',
    950: '#000000',
  },
}

SCSS

$custom: #3863bb;
$custom-light: #7e8ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3863bb",
  "rgb": {
    "r": 56,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 220.305,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.51613,
    "c": 0.1468,
    "h": 262.8
  },
  "luminance": 0.13352
}

Semantic roles & 50–950 ramp

primary

#3863BB

secondary

#C8B386

accent

#AD4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3863BB

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

Preview Lab → · Contrast checker → · Palette generator →