#6637BC#6637BC

#6637BC is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.3% C 0.196 H 293.7°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#6637BC
RGB	rgb(102, 55, 188)
HSL	hsl(261, 55%, 48%)
HSV	hsv(261, 71%, 74%)
CMYK	cmyk(45.7%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(36.34, 50.00, -62.50)
CIE-LCH	lch(36.34, 80.04, 308.66°)
OKLab	oklab(47.34% 0.0787 -0.179)
OKLCH	oklch(47.34% 0.196 293.7)
XYZ	xyz(15.9203, 9.1875, 48.5018)
Luminance	0.0919 (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

#6637BC #8DBC37

analogous

#374ABC #6637BC #A937BC

triadic

#6637BC #BC6637 #37BC66

tetradic

#6637BC #BC374A #8DBC37 #37BCA9

square

#6637BC #BC374A #8DBC37 #37BCA9

split-complementary

#6637BC #BCA937 #4ABC37

monochromatic

#331B5D #4C298D #6637BC #8860D0 #AB8FDE

Accessibility & contrast

On white

7.40

#6637BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#6637BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6637BC

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6637BC	#FFFFFF	#000000	##FFFFFF
##6637BC	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C0

Deuteranopia (green-blind)

#0053B9

Tritanopia (blue-blind)

#4D5976

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #6637bc;
/* rgb */ color: rgb(102, 55, 188);
/* oklch */ color: oklch(47.3% 0.196 293.7);

Tailwind

colors: {
  custom: {
    50: '#9972d1',
    500: '#6637bc',
    950: '#000000',
  },
}

SCSS

$custom: #6637bc;
$custom-light: #9972d1;
$custom-dark: #000000;

JSON

{
  "hex": "#6637bc",
  "rgb": {
    "r": 102,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 261.203,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47335,
    "c": 0.19553,
    "h": 293.7
  },
  "luminance": 0.09188
}

Semantic roles & 50–950 ramp

primary

#6637BC

secondary

#B1C986

accent

#DE4AAA

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #6637BC

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

Preview Lab → · Contrast checker → · Palette generator →