#6566F7#6566F7

#6566F7 is a mid, highly saturated blue. Relative luminance 0.190; OKLCH L 59.1% C 0.211 H 277.5°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#6566F7
RGB	rgb(101, 102, 247)
HSL	hsl(240, 90%, 68%)
HSV	hsv(240, 59%, 97%)
CMYK	cmyk(59.1%, 58.7%, 0%, 3.1%)
CIE-LAB	lab(50.67, 40.92, -72.91)
CIE-LCH	lch(50.67, 83.61, 299.31°)
OKLab	oklab(59.13% 0.0275 -0.2096)
OKLCH	oklch(59.13% 0.211 277.5)
XYZ	xyz(26.9013, 18.9828, 90.2241)
Luminance	0.1898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566F7 #F7F665

analogous

#65AFF7 #6566F7 #AD65F7

triadic

#6566F7 #F76566 #66F765

tetradic

#6566F7 #F765AF #F7F665 #65F7AD

square

#6566F7 #F765AF #F7F665 #65F7AD

split-complementary

#6566F7 #F7AD65 #AFF765

monochromatic

#0B0DD6 #2B2CF4 #6566F7 #9FA0FA #D9DAFD

Accessibility & contrast

On white

4.38

#6566F7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#6566F7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6566F7

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566F7	#FFFFFF	#000000	##000000
##6566F7	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007FFC

Deuteranopia (green-blind)

#0073F4

Tritanopia (blue-blind)

#0089A5

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #6566f7;
/* rgb */ color: rgb(101, 102, 247);
/* oklch */ color: oklch(59.1% 0.211 277.5);

Tailwind

colors: {
  custom: {
    50: '#9e92fb',
    500: '#6566f7',
    950: '#000000',
  },
}

SCSS

$custom: #6566f7;
$custom-light: #9e92fb;
$custom-dark: #000000;

JSON

{
  "hex": "#6566f7",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 247
  },
  "hsl": {
    "h": 239.589,
    "s": 90.123,
    "l": 68.235
  },
  "oklch": {
    "l": 0.59128,
    "c": 0.21135,
    "h": 277.5
  },
  "luminance": 0.18985
}

Semantic roles & 50–950 ramp

primary

#6566F7

secondary

#F2F2C6

accent

#E400E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D17

muted

#7F7E85

Preview Lab

Preview with #6566F7

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

Preview Lab → · Contrast checker → · Palette generator →