#3563BC#3563BC

#3563BC is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.6% C 0.149 H 262.0°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3563BC
RGB	rgb(53, 99, 188)
HSL	hsl(220, 56%, 47%)
HSV	hsv(220, 72%, 74%)
CMYK	cmyk(71.8%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(43.23, 14.94, -51.51)
CIE-LCH	lch(43.23, 53.63, 286.17°)
OKLab	oklab(51.55% -0.0207 -0.1477)
OKLCH	oklch(51.55% 0.149 262)
XYZ	xyz(15.0039, 13.3098, 49.3455)
Luminance	0.1331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3563BC #BC8E35

analogous

#35A6BC #3563BC #4B35BC

triadic

#3563BC #BC3563 #63BC35

tetradic

#3563BC #BC35A6 #BC8E35 #35BC4B

square

#3563BC #BC35A6 #BC8E35 #35BC4B

split-complementary

#3563BC #BC4B35 #A6BC35

monochromatic

#1A315D #284A8C #3563BC #5D85D1 #8DA9DF

Accessibility & contrast

On white

5.73

#3563BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#3563BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3563BC

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3563BC	#FFFFFF	#000000	##FFFFFF
##3563BC	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346DBF

Deuteranopia (green-blind)

#1160BA

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3563bc;
/* rgb */ color: rgb(53, 99, 188);
/* oklch */ color: oklch(51.6% 0.149 262.0);

Tailwind

colors: {
  custom: {
    50: '#7d8ed1',
    500: '#3563bc',
    950: '#000000',
  },
}

SCSS

$custom: #3563bc;
$custom-light: #7d8ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3563bc",
  "rgb": {
    "r": 53,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 219.556,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.51553,
    "c": 0.14915,
    "h": 262
  },
  "luminance": 0.13311
}

Semantic roles & 50–950 ramp

primary

#3563BC

secondary

#C9B184

accent

#AC48DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3563BC

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

Preview Lab → · Contrast checker → · Palette generator →