#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
RGBrgb(101, 102, 241)
HSLhsl(240, 83%, 67%)
HSVhsv(240, 58%, 95%)
CMYKcmyk(58.1%, 57.7%, 0%, 5.5%)
CIE-LABlab(50.24, 39.03, -70.26)
CIE-LCHlch(50.24, 80.37, 299.05°)
OKLaboklab(58.68% 0.0276 -0.2018)
OKLCHoklch(58.68% 0.204 277.8)
XYZxyz(25.9903, 18.6184, 85.4262)
Luminance0.1862 (WCAG relative)
Temperaturecool
Familyblue

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
##6566F11.004.454.724.72
#FFFFFF4.451.0021.0021.00
#0000004.7221.001.001.00
##0000004.7221.001.001.00

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 →

#6566F1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva