#6639B8#6639B8

#6639B8 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.3% C 0.189 H 294.3°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#6639B8
RGB	rgb(102, 57, 184)
HSL	hsl(261, 53%, 47%)
HSV	hsv(261, 69%, 72%)
CMYK	cmyk(44.6%, 69%, 0%, 27.8%)
CIE-LAB	lab(36.39, 47.90, -60.07)
CIE-LCH	lch(36.39, 76.83, 308.57°)
OKLab	oklab(47.27% 0.0775 -0.1719)
OKLCH	oklch(47.27% 0.189 294.3)
XYZ	xyz(15.5920, 9.2113, 46.2946)
Luminance	0.0921 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.11

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6639B8 #8BB839

analogous

#394BB8 #6639B8 #A639B8

triadic

#6639B8 #B86639 #39B866

tetradic

#6639B8 #B8394B #8BB839 #39B8A6

square

#6639B8 #B8394B #8BB839 #39B8A6

split-complementary

#6639B8 #B8A639 #4BB839

monochromatic

#321C5B #4C2B89 #6639B8 #8760CE #AA8FDC

Accessibility & contrast

On white

7.39

#6639B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#6639B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6639B8

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6639B8	#FFFFFF	#000000	##FFFFFF
##6639B8	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BC

Deuteranopia (green-blind)

#0053B5

Tritanopia (blue-blind)

#4F5874

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #6639b8;
/* rgb */ color: rgb(102, 57, 184);
/* oklch */ color: oklch(47.3% 0.189 294.3);

Tailwind

colors: {
  custom: {
    50: '#9973ce',
    500: '#6639b8',
    950: '#000000',
  },
}

SCSS

$custom: #6639b8;
$custom-light: #9973ce;
$custom-dark: #000000;

JSON

{
  "hex": "#6639b8",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 184
  },
  "hsl": {
    "h": 261.26,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47266,
    "c": 0.18851,
    "h": 294.3
  },
  "luminance": 0.09212
}

Semantic roles & 50–950 ramp

primary

#6639B8

secondary

#B0C786

accent

#DC4CA9

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #6639B8

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

Preview Lab → · Contrast checker → · Palette generator →