#6566CD#6566CD

#6566CD is a mid, vivid blue. Relative luminance 0.167; OKLCH L 56.1% C 0.155 H 279.7°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#6566CD
RGB	rgb(101, 102, 205)
HSL	hsl(239, 51%, 60%)
HSV	hsv(239, 51%, 80%)
CMYK	cmyk(50.7%, 50.2%, 0%, 19.6%)
CIE-LAB	lab(47.85, 27.70, -53.75)
CIE-LCH	lch(47.85, 60.47, 297.27°)
OKLab	oklab(56.13% 0.0263 -0.1532)
OKLCH	oklch(56.13% 0.155 279.7)
XYZ	xyz(21.1342, 16.6760, 59.8509)
Luminance	0.1668 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566CD #CDCC65

analogous

#659ACD #6566CD #9865CD

triadic

#6566CD #CD6566 #66CD65

tetradic

#6566CD #CD659A #CDCC65 #65CD98

square

#6566CD #CD659A #CDCC65 #65CD98

split-complementary

#6566CD #CD9865 #9ACD65

monochromatic

#2D2E8B #3C3DB9 #6566CD #9394DC #C1C2EB

Accessibility & contrast

On white

4.84

#6566CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#6566CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6566CD

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566CD	#FFFFFF	#000000	##FFFFFF
##6566CD	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3476D1

Deuteranopia (green-blind)

#2A6ECB

Tritanopia (blue-blind)

#3B7D90

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #6566cd;
/* rgb */ color: rgb(101, 102, 205);
/* oklch */ color: oklch(56.1% 0.155 279.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#6566cd",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 205
  },
  "hsl": {
    "h": 239.423,
    "s": 50.98,
    "l": 60
  },
  "oklch": {
    "l": 0.56134,
    "c": 0.15543,
    "h": 279.7
  },
  "luminance": 0.16677
}

Semantic roles & 50–950 ramp

primary

#6566CD

secondary

#DBDBB3

accent

#D94DDA

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #6566CD

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

Preview Lab → · Contrast checker → · Palette generator →