#6639CF#6639CF

#6639CF is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.2% C 0.215 H 289.8°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#6639CF
RGB	rgb(102, 57, 207)
HSL	hsl(258, 61%, 52%)
HSV	hsv(258, 72%, 81%)
CMYK	cmyk(50.7%, 72.5%, 0%, 18.8%)
CIE-LAB	lab(38.30, 54.16, -70.39)
CIE-LCH	lch(38.30, 88.82, 307.58°)
OKLab	oklab(49.21% 0.073 -0.2022)
OKLCH	oklch(49.21% 0.215 289.8)
XYZ	xyz(18.2019, 10.2552, 60.0398)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6639CF #A2CF39

analogous

#3957CF #6639CF #B139CF

triadic

#6639CF #CF6639 #39CF66

tetradic

#6639CF #CF3957 #A2CF39 #39CFB1

square

#6639CF #CF3957 #A2CF39 #39CFB1

split-complementary

#6639CF #CFB139 #57CF39

monochromatic

#361C72 #4D28A3 #6639CF #8C6ADB #B29CE7

Accessibility & contrast

On white

6.88

#6639CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#6639CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6639CF

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6639CF	#FFFFFF	#000000	##FFFFFF
##6639CF	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD3

Deuteranopia (green-blind)

#0057CC

Tritanopia (blue-blind)

#416181

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #6639cf;
/* rgb */ color: rgb(102, 57, 207);
/* oklch */ color: oklch(49.2% 0.215 289.8);

Tailwind

colors: {
  custom: {
    50: '#9b74df',
    500: '#6639cf',
    950: '#000000',
  },
}

SCSS

$custom: #6639cf;
$custom-light: #9b74df;
$custom-dark: #000000;

JSON

{
  "hex": "#6639cf",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 207
  },
  "hsl": {
    "h": 258,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49213,
    "c": 0.21493,
    "h": 289.8
  },
  "luminance": 0.10256
}

Semantic roles & 50–950 ramp

primary

#6639CF

secondary

#BFD391

accent

#E444B4

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #6639CF

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

Preview Lab → · Contrast checker → · Palette generator →