#3566DB#3566DB

#3566DB is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.4% C 0.187 H 264.0°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3566DB
RGB	rgb(53, 102, 219)
HSL	hsl(222, 70%, 53%)
HSV	hsv(222, 76%, 86%)
CMYK	cmyk(75.8%, 53.4%, 0%, 14.1%)
CIE-LAB	lab(46.14, 24.52, -64.63)
CIE-LCH	lch(46.14, 69.12, 290.77°)
OKLab	oklab(54.44% -0.0195 -0.1862)
OKLCH	oklch(54.44% 0.187 264)
XYZ	xyz(19.0012, 15.3720, 68.9698)
Luminance	0.1537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566DB #DBAA35

analogous

#35B9DB #3566DB #5735DB

triadic

#3566DB #DB3566 #66DB35

tetradic

#3566DB #DB35B9 #DBAA35 #35DB57

square

#3566DB #DB35B9 #DBAA35 #35DB57

split-complementary

#3566DB #DB5735 #B9DB35

monochromatic

#17357F #204BB3 #3566DB #698DE4 #9DB5EE

Accessibility & contrast

On white

5.15

#3566DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#3566DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566DB

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566DB	#FFFFFF	#000000	##FFFFFF
##3566DB	1.00	5.15	4.07	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0175DF

Deuteranopia (green-blind)

#0066D9

Tritanopia (blue-blind)

#008397

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3566db;
/* rgb */ color: rgb(53, 102, 219);
/* oklch */ color: oklch(54.4% 0.187 264.0);

Tailwind

colors: {
  custom: {
    50: '#8491e7',
    500: '#3566db',
    950: '#000000',
  },
}

SCSS

$custom: #3566db;
$custom-light: #8491e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3566db",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 219
  },
  "hsl": {
    "h": 222.289,
    "s": 69.748,
    "l": 53.333
  },
  "oklch": {
    "l": 0.5444,
    "c": 0.18727,
    "h": 264
  },
  "luminance": 0.15374
}

Semantic roles & 50–950 ramp

primary

#3566DB

secondary

#DAC592

accent

#B83BED

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0C16

muted

#7D7D84

Preview Lab

Preview with #3566DB

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

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