#6566F9#6566F9

#6566F9 is a mid, highly saturated blue. Relative luminance 0.191; OKLCH L 59.3% C 0.214 H 277.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#6566F9
RGB	rgb(101, 102, 249)
HSL	hsl(240, 93%, 69%)
HSV	hsv(240, 59%, 98%)
CMYK	cmyk(59.4%, 59%, 0%, 2.4%)
CIE-LAB	lab(50.81, 41.56, -73.79)
CIE-LCH	lch(50.81, 84.68, 299.39°)
OKLab	oklab(59.28% 0.0274 -0.2121)
OKLCH	oklch(59.28% 0.214 277.4)
XYZ	xyz(27.2116, 19.1069, 91.8582)
Luminance	0.1911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566F9 #F9F865

analogous

#65B0F9 #6566F9 #AE65F9

triadic

#6566F9 #F96566 #66F965

tetradic

#6566F9 #F965B0 #F9F865 #65F9AE

square

#6566F9 #F965B0 #F9F865 #65F9AE

split-complementary

#6566F9 #F9AE65 #B0F965

monochromatic

#090ADB #2A2BF7 #6566F9 #A0A1FB #DBDBFE

Accessibility & contrast

On white

4.36

#6566F9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#6566F9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6566F9

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566F9	#FFFFFF	#000000	##000000
##6566F9	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007FFE

Deuteranopia (green-blind)

#0073F6

Tritanopia (blue-blind)

#008AA6

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #6566f9;
/* rgb */ color: rgb(101, 102, 249);
/* oklch */ color: oklch(59.3% 0.214 277.4);

Tailwind

colors: {
  custom: {
    50: '#9e92fc',
    500: '#6566f9',
    950: '#000000',
  },
}

SCSS

$custom: #6566f9;
$custom-light: #9e92fc;
$custom-dark: #000000;

JSON

{
  "hex": "#6566f9",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 249
  },
  "hsl": {
    "h": 239.595,
    "s": 92.5,
    "l": 68.627
  },
  "oklch": {
    "l": 0.59281,
    "c": 0.2139,
    "h": 277.4
  },
  "luminance": 0.19109
}

Semantic roles & 50–950 ramp

primary

#6566F9

secondary

#F3F3C7

accent

#E400E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #6566F9

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

Preview Lab → · Contrast checker → · Palette generator →