#6640CB#6640CB

#6640CB is a mid, highly saturated violet. Relative luminance 0.108; OKLCH L 49.8% C 0.202 H 289.5°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#6640CB
RGB	rgb(102, 64, 203)
HSL	hsl(256, 57%, 52%)
HSV	hsv(256, 68%, 80%)
CMYK	cmyk(49.8%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(39.25, 49.48, -66.52)
CIE-LCH	lch(39.25, 82.90, 306.64°)
OKLab	oklab(49.79% 0.0676 -0.1908)
OKLCH	oklch(49.79% 0.202 289.5)
XYZ	xyz(18.0893, 10.8026, 57.6203)
Luminance	0.1080 (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

#6640CB #A5CB40

analogous

#405FCB #6640CB #AC40CB

triadic

#6640CB #CB6640 #40CB66

tetradic

#6640CB #CB405F #A5CB40 #40CBAC

square

#6640CB #CB405F #A5CB40 #40CBAC

split-complementary

#6640CB #CBAC40 #5FCB40

monochromatic

#361F72 #4C2CA2 #6640CB #8D70D8 #B3A0E5

Accessibility & contrast

On white

6.64

#6640CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#6640CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6640CB

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6640CB	#FFFFFF	#000000	##FFFFFF
##6640CB	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCF

Deuteranopia (green-blind)

#0059C8

Tritanopia (blue-blind)

#436380

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #6640cb;
/* rgb */ color: rgb(102, 64, 203);
/* oklch */ color: oklch(49.8% 0.202 289.5);

Tailwind

colors: {
  custom: {
    50: '#9a78dc',
    500: '#6640cb',
    950: '#000000',
  },
}

SCSS

$custom: #6640cb;
$custom-light: #9a78dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6640cb",
  "rgb": {
    "r": 102,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 256.403,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49785,
    "c": 0.20245,
    "h": 289.5
  },
  "luminance": 0.10803
}

Semantic roles & 50–950 ramp

primary

#6640CB

secondary

#C1D295

accent

#E047B7

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #6640CB

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

Preview Lab → · Contrast checker → · Palette generator →