#6566DA#6566DA

#6566DA is a mid, vivid blue. Relative luminance 0.173; OKLCH L 57.0% C 0.173 H 279.0°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#6566DA
RGB	rgb(101, 102, 218)
HSL	hsl(239, 61%, 63%)
HSV	hsv(239, 54%, 85%)
CMYK	cmyk(53.7%, 53.2%, 0%, 14.5%)
CIE-LAB	lab(48.67, 31.77, -59.83)
CIE-LCH	lch(48.67, 67.74, 297.97°)
OKLab	oklab(57.02% 0.0271 -0.1711)
OKLCH	oklch(57.02% 0.173 279)
XYZ	xyz(22.7691, 17.3300, 68.4613)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566DA #DAD965

analogous

#65A1DA #6566DA #9E65DA

triadic

#6566DA #DA6566 #66DA65

tetradic

#6566DA #DA65A1 #DAD965 #65DA9E

square

#6566DA #DA65A1 #DAD965 #65DA9E

split-complementary

#6566DA #DA9E65 #A1DA65

monochromatic

#26279F #3435CE #6566DA #9697E6 #C8C8F2

Accessibility & contrast

On white

4.70

#6566DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#6566DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6566DA

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566DA	#FFFFFF	#000000	##FFFFFF
##6566DA	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2278DE

Deuteranopia (green-blind)

#086FD8

Tritanopia (blue-blind)

#2E8096

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #6566da;
/* rgb */ color: rgb(101, 102, 218);
/* oklch */ color: oklch(57.0% 0.173 279.0);

Tailwind

colors: {
  custom: {
    50: '#9991e6',
    500: '#6566da',
    950: '#000000',
  },
}

SCSS

$custom: #6566da;
$custom-light: #9991e6;
$custom-dark: #000000;

JSON

{
  "hex": "#6566da",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 218
  },
  "hsl": {
    "h": 239.487,
    "s": 61.257,
    "l": 62.549
  },
  "oklch": {
    "l": 0.57015,
    "c": 0.17324,
    "h": 279
  },
  "luminance": 0.17331
}

Semantic roles & 50–950 ramp

primary

#6566DA

secondary

#E3E2B8

accent

#C71DC9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0D16

muted

#7E7D84

Preview Lab

Preview with #6566DA

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

Preview Lab → · Contrast checker → · Palette generator →