#6637BB#6637BB

#6637BB is a mid, vivid violet. Relative luminance 0.091; OKLCH L 47.3% C 0.194 H 293.9°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#6637BB
RGB	rgb(102, 55, 187)
HSL	hsl(261, 55%, 47%)
HSV	hsv(261, 71%, 73%)
CMYK	cmyk(45.5%, 70.6%, 0%, 26.7%)
CIE-LAB	lab(36.26, 49.73, -62.04)
CIE-LCH	lch(36.26, 79.51, 308.72°)
OKLab	oklab(47.25% 0.0789 -0.1777)
OKLCH	oklch(47.25% 0.194 293.9)
XYZ	xyz(15.8129, 9.1446, 47.9360)
Luminance	0.0915 (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

#6637BB #8CBB37

analogous

#374ABB #6637BB #A837BB

triadic

#6637BB #BB6637 #37BB66

tetradic

#6637BB #BB374A #8CBB37 #37BBA8

square

#6637BB #BB374A #8CBB37 #37BBA8

split-complementary

#6637BB #BBA837 #4ABB37

monochromatic

#321B5C #4C298C #6637BB #875FD0 #AB8EDE

Accessibility & contrast

On white

7.42

#6637BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#6637BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6637BB

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6637BB	#FFFFFF	#000000	##FFFFFF
##6637BB	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BF

Deuteranopia (green-blind)

#0053B8

Tritanopia (blue-blind)

#4D5875

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #6637bb;
/* rgb */ color: rgb(102, 55, 187);
/* oklch */ color: oklch(47.3% 0.194 293.9);

Tailwind

colors: {
  custom: {
    50: '#9972d0',
    500: '#6637bb',
    950: '#000000',
  },
}

SCSS

$custom: #6637bb;
$custom-light: #9972d0;
$custom-dark: #000000;

JSON

{
  "hex": "#6637bb",
  "rgb": {
    "r": 102,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 261.364,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47251,
    "c": 0.19438,
    "h": 293.9
  },
  "luminance": 0.09145
}

Semantic roles & 50–950 ramp

primary

#6637BB

secondary

#B1C985

accent

#DE4AA9

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0F0814

muted

#7E7B82

Preview Lab

Preview with #6637BB

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

Preview Lab → · Contrast checker → · Palette generator →