#6566F1#6566F1

#6566F1 is a mid, highly saturated blue. Relative luminance 0.186; OKLCH L 58.7% C 0.204 H 277.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#6566F1
RGB	rgb(101, 102, 241)
HSL	hsl(240, 83%, 67%)
HSV	hsv(240, 58%, 95%)
CMYK	cmyk(58.1%, 57.7%, 0%, 5.5%)
CIE-LAB	lab(50.24, 39.03, -70.26)
CIE-LCH	lch(50.24, 80.37, 299.05°)
OKLab	oklab(58.68% 0.0276 -0.2018)
OKLCH	oklch(58.68% 0.204 277.8)
XYZ	xyz(25.9903, 18.6184, 85.4262)
Luminance	0.1862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566F1 #F1F065

analogous

#65ACF1 #6566F1 #AA65F1

triadic

#6566F1 #F16566 #66F165

tetradic

#6566F1 #F165AC #F1F065 #65F1AA

square

#6566F1 #F165AC #F1F065 #65F1AA

split-complementary

#6566F1 #F1AA65 #ACF165

monochromatic

#1214C9 #2D2EEC #6566F1 #9D9EF6 #D5D5FB

Accessibility & contrast

On white

4.45

#6566F1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#6566F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6566F1

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566F1	#FFFFFF	#000000	##000000
##6566F1	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007DF6

Deuteranopia (green-blind)

#0072EE

Tritanopia (blue-blind)

#0087A2

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #6566f1;
/* rgb */ color: rgb(101, 102, 241);
/* oklch */ color: oklch(58.7% 0.204 277.8);

Tailwind

colors: {
  custom: {
    50: '#9d92f7',
    500: '#6566f1',
    950: '#000000',
  },
}

SCSS

$custom: #6566f1;
$custom-light: #9d92f7;
$custom-dark: #000000;

JSON

{
  "hex": "#6566f1",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 241
  },
  "hsl": {
    "h": 239.571,
    "s": 83.333,
    "l": 67.059
  },
  "oklch": {
    "l": 0.58676,
    "c": 0.20363,
    "h": 277.8
  },
  "luminance": 0.1862
}

Semantic roles & 50–950 ramp

primary

#6566F1

secondary

#EFEFC3

accent

#DE06E0

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0D17

muted

#7F7D85

Preview Lab

Preview with #6566F1

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

Preview Lab → · Contrast checker → · Palette generator →