#3566AD#3566AD

#3566AD is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.2% C 0.125 H 257.8°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#3566AD
RGB	rgb(53, 102, 173)
HSL	hsl(216, 53%, 44%)
HSV	hsv(216, 69%, 68%)
CMYK	cmyk(69.4%, 41%, 0%, 32.2%)
CIE-LAB	lab(43.18, 7.47, -42.82)
CIE-LCH	lch(43.18, 43.47, 279.90°)
OKLab	oklab(51.22% -0.0263 -0.1221)
OKLCH	oklch(51.22% 0.125 257.8)
XYZ	xyz(13.7597, 13.2753, 41.3643)
Luminance	0.1328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566AD #AD7C35

analogous

#35A2AD #3566AD #4035AD

triadic

#3566AD #AD3566 #66AD35

tetradic

#3566AD #AD35A2 #AD7C35 #35AD40

square

#3566AD #AD35A2 #AD7C35 #35AD40

split-complementary

#3566AD #AD4035 #A2AD35

monochromatic

#182F4F #274A7E #3566AD #5485CB #83A6D9

Accessibility & contrast

On white

5.74

#3566AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#3566AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566AD

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566AD	#FFFFFF	#000000	##FFFFFF
##3566AD	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456CB0

Deuteranopia (green-blind)

#3261AC

Tritanopia (blue-blind)

#007681

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3566ad;
/* rgb */ color: rgb(53, 102, 173);
/* oklch */ color: oklch(51.2% 0.125 257.8);

Tailwind

colors: {
  custom: {
    50: '#7a91c6',
    500: '#3566ad',
    950: '#000000',
  },
}

SCSS

$custom: #3566ad;
$custom-light: #7a91c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3566ad",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 173
  },
  "hsl": {
    "h": 215.5,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51219,
    "c": 0.12494,
    "h": 257.8
  },
  "luminance": 0.13277
}

Semantic roles & 50–950 ramp

primary

#3566AD

secondary

#C3A57B

accent

#A14BDD

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3566AD

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

Preview Lab → · Contrast checker → · Palette generator →