#643487#643487

#643487 is a dark, vivid violet. Relative luminance 0.069; OKLCH L 42.6% C 0.137 H 308.3°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX#643487
RGBrgb(100, 52, 135)
HSLhsl(275, 44%, 37%)
HSVhsv(275, 61%, 53%)
CMYKcmyk(25.9%, 61.5%, 0%, 47.1%)
CIE-LABlab(31.61, 37.37, -38.18)
CIE-LCHlch(31.61, 53.43, 314.38°)
OKLaboklab(42.64% 0.0851 -0.1076)
OKLCHoklch(42.64% 0.137 308.3)
XYZxyz(10.8558, 6.9147, 23.6798)
Luminance0.0692 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#643487 #578734
analogous
#3B3487 #643487 #873481
triadic
#643487 #876434 #348764
tetradic
#643487 #873B34 #578734 #348187
square
#643487 #873B34 #578734 #348187
split-complementary
#643487 #818734 #34873B
monochromatic
#23122F #43235B #643487 #8545B3 #A26EC7

Accessibility & contrast

On white

8.81
#643487 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.38
#643487 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643487
8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##643487#FFFFFF#000000##FFFFFF
##6434871.008.812.388.81
#FFFFFF8.811.0021.001.00
#0000002.3821.001.0021.00
##FFFFFF8.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#12488A
Deuteranopia (green-blind)
#284B85
Tritanopia (blue-blind)
#5F4458
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #643487;
/* rgb */ color: rgb(100, 52, 135);
/* oklch */ color: oklch(42.6% 0.137 308.3);
Tailwind
colors: {
  custom: {
    50: '#936eaa',
    500: '#643487',
    950: '#000000',
  },
}
SCSS
$custom: #643487;
$custom-light: #936eaa;
$custom-dark: #000000;
JSON
{
  "hex": "#643487",
  "rgb": {
    "r": 100,
    "g": 52,
    "b": 135
  },
  "hsl": {
    "h": 274.699,
    "s": 44.385,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42643,
    "c": 0.13719,
    "h": 308.3
  },
  "luminance": 0.06915
}

Semantic roles & 50–950 ramp

primary
#643487
secondary
#86AF67
accent
#D4548A
background
#F9F6FA
surface
#F2ECF4
border
#CCC7CE
text
#0D0710
muted
#7E7A7F

Preview Lab

Preview with #643487

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

Preview Lab → · Contrast checker → · Palette generator →

#643487 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva