#6543CB#6543CB

#6543CB is a mid, vivid violet. Relative luminance 0.111; OKLCH L 50.1% C 0.199 H 288.6°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX#6543CB
RGBrgb(101, 67, 203)
HSLhsl(255, 57%, 53%)
HSVhsv(255, 67%, 80%)
CMYKcmyk(50.2%, 67%, 0%, 20.4%)
CIE-LABlab(39.73, 47.69, -65.73)
CIE-LCHlch(39.73, 81.21, 305.97°)
OKLaboklab(50.11% 0.0634 -0.1885)
OKLCHoklch(50.11% 0.199 288.6)
XYZxyz(18.1503, 11.0920, 57.6729)
Luminance0.1109 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6543CB #A9CB43
analogous
#4365CB #6543CB #A943CB
triadic
#6543CB #CB6543 #43CB65
tetradic
#6543CB #CB4365 #A9CB43 #43CBA9
square
#6543CB #CB4365 #A9CB43 #43CBA9
split-complementary
#6543CB #CBA943 #65CB43
monochromatic
#352074 #4B2DA4 #6543CB #8C73D8 #B4A3E6

Accessibility & contrast

On white

6.52
#6543CB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.22
#6543CB on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6543CB
6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6543CB#FFFFFF#000000##FFFFFF
##6543CB1.006.523.226.52
#FFFFFF6.521.0021.001.00
#0000003.2221.001.0021.00
##FFFFFF6.521.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0061CF
Deuteranopia (green-blind)
#005AC8
Tritanopia (blue-blind)
#416581
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #6543cb;
/* rgb */ color: rgb(101, 67, 203);
/* oklch */ color: oklch(50.1% 0.199 288.6);
Tailwind
colors: {
  custom: {
    50: '#9a79dc',
    500: '#6543cb',
    950: '#000000',
  },
}
SCSS
$custom: #6543cb;
$custom-light: #9a79dc;
$custom-dark: #000000;
JSON
{
  "hex": "#6543cb",
  "rgb": {
    "r": 101,
    "g": 67,
    "b": 203
  },
  "hsl": {
    "h": 255,
    "s": 56.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.50113,
    "c": 0.19891,
    "h": 288.6
  },
  "luminance": 0.11093
}

Semantic roles & 50–950 ramp

primary
#6543CB
secondary
#C4D298
accent
#E048BA
background
#FAF7FD
surface
#F3EEFB
border
#CDC9D4
text
#0F0915
muted
#7F7B83

Preview Lab

Preview with #6543CB

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

Preview Lab → · Contrast checker → · Palette generator →

#6543CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva