#6640CF#6640CF

#6640CF is a mid, highly saturated violet. Relative luminance 0.110; OKLCH L 50.1% C 0.207 H 288.8°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#6640CF
RGB	rgb(102, 64, 207)
HSL	hsl(256, 60%, 53%)
HSV	hsv(256, 69%, 81%)
CMYK	cmyk(50.7%, 69.1%, 0%, 18.8%)
CIE-LAB	lab(39.57, 50.60, -68.30)
CIE-LCH	lch(39.57, 85.00, 306.53°)
OKLab	oklab(50.12% 0.0669 -0.1961)
OKLCH	oklch(50.12% 0.207 288.8)
XYZ	xyz(18.5721, 10.9957, 60.1632)
Luminance	0.1100 (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

#6640CF #A9CF40

analogous

#4061CF #6640CF #AD40CF

triadic

#6640CF #CF6640 #40CF66

tetradic

#6640CF #CF4061 #A9CF40 #40CFAD

square

#6640CF #CF4061 #A9CF40 #40CFAD

split-complementary

#6640CF #CFAD40 #61CF40

monochromatic

#351E77 #4B2AA8 #6640CF #8D71DB #B4A2E8

Accessibility & contrast

On white

6.56

#6640CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#6640CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6640CF

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6640CF	#FFFFFF	#000000	##FFFFFF
##6640CF	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D3

Deuteranopia (green-blind)

#005ACC

Tritanopia (blue-blind)

#406583

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #6640cf;
/* rgb */ color: rgb(102, 64, 207);
/* oklch */ color: oklch(50.1% 0.207 288.8);

Tailwind

colors: {
  custom: {
    50: '#9b78df',
    500: '#6640cf',
    950: '#000000',
  },
}

SCSS

$custom: #6640cf;
$custom-light: #9b78df;
$custom-dark: #000000;

JSON

{
  "hex": "#6640cf",
  "rgb": {
    "r": 102,
    "g": 64,
    "b": 207
  },
  "hsl": {
    "h": 255.944,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.50121,
    "c": 0.20717,
    "h": 288.8
  },
  "luminance": 0.10997
}

Semantic roles & 50–950 ramp

primary

#6640CF

secondary

#C4D497

accent

#E345B9

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #6640CF

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

Preview Lab → · Contrast checker → · Palette generator →