#3863B7#3863B7

#3863B7 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.3% C 0.141 H 262.2°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#3863B7
RGB	rgb(56, 99, 183)
HSL	hsl(220, 53%, 47%)
HSV	hsv(220, 69%, 72%)
CMYK	cmyk(69.4%, 45.9%, 0%, 28.2%)
CIE-LAB	lab(43.04, 13.54, -48.90)
CIE-LCH	lch(43.04, 50.73, 285.48°)
OKLab	oklab(51.34% -0.0191 -0.14)
OKLCH	oklch(51.34% 0.141 262.2)
XYZ	xyz(14.6369, 13.1818, 46.5635)
Luminance	0.1318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3863B7 #B78C38

analogous

#38A3B7 #3863B7 #4D38B7

triadic

#3863B7 #B73863 #63B738

tetradic

#3863B7 #B738A3 #B78C38 #38B74D

square

#3863B7 #B738A3 #B78C38 #38B74D

split-complementary

#3863B7 #B74D38 #A3B738

monochromatic

#1B3059 #2A4A88 #3863B7 #5E84CE #8DA8DC

Accessibility & contrast

On white

5.77

#3863B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#3863B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3863B7

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3863B7	#FFFFFF	#000000	##FFFFFF
##3863B7	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396CBA

Deuteranopia (green-blind)

#1F60B5

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3863b7;
/* rgb */ color: rgb(56, 99, 183);
/* oklch */ color: oklch(51.3% 0.141 262.2);

Tailwind

colors: {
  custom: {
    50: '#7d8ecd',
    500: '#3863b7',
    950: '#000000',
  },
}

SCSS

$custom: #3863b7;
$custom-light: #7d8ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#3863b7",
  "rgb": {
    "r": 56,
    "g": 99,
    "b": 183
  },
  "hsl": {
    "h": 219.685,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.51339,
    "c": 0.14126,
    "h": 262.2
  },
  "luminance": 0.13183
}

Semantic roles & 50–950 ramp

primary

#3863B7

secondary

#C7B084

accent

#AB4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3863B7

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

Preview Lab → · Contrast checker → · Palette generator →