#3563AD#3563AD

#3563AD is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.5% C 0.128 H 259.5°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3563AD
RGB	rgb(53, 99, 173)
HSL	hsl(217, 53%, 44%)
HSV	hsv(217, 69%, 68%)
CMYK	cmyk(69.4%, 42.8%, 0%, 32.2%)
CIE-LAB	lab(42.30, 9.38, -44.22)
CIE-LCH	lch(42.30, 45.20, 281.98°)
OKLab	oklab(50.54% -0.0234 -0.1263)
OKLCH	oklch(50.54% 0.128 259.5)
XYZ	xyz(13.4702, 12.6963, 41.2678)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3563AD #AD7F35

analogous

#359FAD #3563AD #4335AD

triadic

#3563AD #AD3563 #63AD35

tetradic

#3563AD #AD359F #AD7F35 #35AD43

square

#3563AD #AD359F #AD7F35 #35AD43

split-complementary

#3563AD #AD4335 #9FAD35

monochromatic

#182D4F #27487E #3563AD #5482CB #83A4D9

Accessibility & contrast

On white

5.93

#3563AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3563AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3563AD

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3563AD	#FFFFFF	#000000	##FFFFFF
##3563AD	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406AB0

Deuteranopia (green-blind)

#2C5FAB

Tritanopia (blue-blind)

#00747F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3563ad;
/* rgb */ color: rgb(53, 99, 173);
/* oklch */ color: oklch(50.5% 0.128 259.5);

Tailwind

colors: {
  custom: {
    50: '#7a8ec6',
    500: '#3563ad',
    950: '#000000',
  },
}

SCSS

$custom: #3563ad;
$custom-light: #7a8ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#3563ad",
  "rgb": {
    "r": 53,
    "g": 99,
    "b": 173
  },
  "hsl": {
    "h": 217,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.50543,
    "c": 0.12841,
    "h": 259.5
  },
  "luminance": 0.12698
}

Semantic roles & 50–950 ramp

primary

#3563AD

secondary

#C3A77B

accent

#A54BDD

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3563AD

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

Preview Lab → · Contrast checker → · Palette generator →