#6566F0#6566F0

#6566F0 is a mid, highly saturated blue. Relative luminance 0.186; OKLCH L 58.6% C 0.202 H 277.8°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#6566F0
RGB	rgb(101, 102, 240)
HSL	hsl(240, 82%, 67%)
HSV	hsv(240, 58%, 94%)
CMYK	cmyk(57.9%, 57.5%, 0%, 5.9%)
CIE-LAB	lab(50.17, 38.71, -69.81)
CIE-LCH	lch(50.17, 79.83, 299.01°)
OKLab	oklab(58.6% 0.0276 -0.2005)
OKLCH	oklch(58.6% 0.202 277.8)
XYZ	xyz(25.8413, 18.5588, 84.6417)
Luminance	0.1856 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566F0 #F0EF65

analogous

#65ACF0 #6566F0 #A965F0

triadic

#6566F0 #F06566 #66F065

tetradic

#6566F0 #F065AC #F0EF65 #65F0A9

square

#6566F0 #F065AC #F0EF65 #65F0A9

split-complementary

#6566F0 #F0A965 #ACF065

monochromatic

#1315C7 #2D2FEB #6566F0 #9D9DF5 #D5D5FB

Accessibility & contrast

On white

4.46

#6566F0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#6566F0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6566F0

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566F0	#FFFFFF	#000000	##000000
##6566F0	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007DF5

Deuteranopia (green-blind)

#0072ED

Tritanopia (blue-blind)

#0087A1

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #6566f0;
/* rgb */ color: rgb(101, 102, 240);
/* oklch */ color: oklch(58.6% 0.202 277.8);

Tailwind

colors: {
  custom: {
    50: '#9d92f6',
    500: '#6566f0',
    950: '#000000',
  },
}

SCSS

$custom: #6566f0;
$custom-light: #9d92f6;
$custom-dark: #000000;

JSON

{
  "hex": "#6566f0",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 240
  },
  "hsl": {
    "h": 239.568,
    "s": 82.249,
    "l": 66.863
  },
  "oklch": {
    "l": 0.58601,
    "c": 0.20235,
    "h": 277.8
  },
  "luminance": 0.18561
}

Semantic roles & 50–950 ramp

primary

#6566F0

secondary

#EFEEC2

accent

#DD07DF

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0D17

muted

#7F7D85

Preview Lab

Preview with #6566F0

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

Preview Lab → · Contrast checker → · Palette generator →