#6566CE#6566CE

#6566CE is a mid, vivid blue. Relative luminance 0.167; OKLCH L 56.2% C 0.157 H 279.7°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#6566CE
RGB	rgb(101, 102, 206)
HSL	hsl(239, 52%, 60%)
HSV	hsv(239, 51%, 81%)
CMYK	cmyk(51%, 50.5%, 0%, 19.2%)
CIE-LAB	lab(47.91, 28.01, -54.22)
CIE-LCH	lch(47.91, 61.03, 297.32°)
OKLab	oklab(56.2% 0.0264 -0.1546)
OKLCH	oklch(56.2% 0.157 279.7)
XYZ	xyz(21.2553, 16.7244, 60.4887)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566CE #CECD65

analogous

#659ACE #6566CE #9965CE

triadic

#6566CE #CE6566 #66CE65

tetradic

#6566CE #CE659A #CECD65 #65CE99

square

#6566CE #CE659A #CECD65 #65CE99

split-complementary

#6566CE #CE9965 #9ACE65

monochromatic

#2D2D8C #3B3DBA #6566CE #9394DD #C2C2EC

Accessibility & contrast

On white

4.83

#6566CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#6566CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6566CE

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566CE	#FFFFFF	#000000	##FFFFFF
##6566CE	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3376D2

Deuteranopia (green-blind)

#286ECC

Tritanopia (blue-blind)

#3A7D90

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #6566ce;
/* rgb */ color: rgb(101, 102, 206);
/* oklch */ color: oklch(56.2% 0.157 279.7);

Tailwind

colors: {
  custom: {
    50: '#9891dd',
    500: '#6566ce',
    950: '#000000',
  },
}

SCSS

$custom: #6566ce;
$custom-light: #9891dd;
$custom-dark: #000000;

JSON

{
  "hex": "#6566ce",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 239.429,
    "s": 51.724,
    "l": 60.196
  },
  "oklch": {
    "l": 0.562,
    "c": 0.15682,
    "h": 279.7
  },
  "luminance": 0.16726
}

Semantic roles & 50–950 ramp

primary

#6566CE

secondary

#DCDBB3

accent

#BE26BF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #6566CE

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

Preview Lab → · Contrast checker → · Palette generator →