#6C66CB#6C66CB

#6C66CB is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.5% C 0.152 H 283.1°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#6C66CB
RGB	rgb(108, 102, 203)
HSL	hsl(244, 49%, 60%)
HSV	hsv(244, 50%, 80%)
CMYK	cmyk(46.8%, 49.8%, 0%, 20.4%)
CIE-LAB	lab(48.26, 28.66, -51.91)
CIE-LCH	lch(48.26, 59.30, 298.90°)
OKLab	oklab(56.54% 0.0344 -0.1476)
OKLCH	oklch(56.54% 0.152 283.1)
XYZ	xyz(21.7120, 17.0016, 58.6259)
Luminance	0.1700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6C66CB #C5CB66

analogous

#6693CB #6C66CB #9E66CB

triadic

#6C66CB #CB6C66 #66CB6C

tetradic

#6C66CB #CB6693 #C5CB66 #66CB9E

square

#6C66CB #CB6693 #C5CB66 #66CB9E

split-complementary

#6C66CB #CB9E66 #93CB66

monochromatic

#342E88 #453EB6 #6C66CB #9894DB #C4C1EA

Accessibility & contrast

On white

4.77

#6C66CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#6C66CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6C66CB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6C66CB	#FFFFFF	#000000	##FFFFFF
##6C66CB	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3976CF

Deuteranopia (green-blind)

#336FC9

Tritanopia (blue-blind)

#4C7C8F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #6c66cb;
/* rgb */ color: rgb(108, 102, 203);
/* oklch */ color: oklch(56.5% 0.152 283.1);

Tailwind

colors: {
  custom: {
    50: '#9c91db',
    500: '#6c66cb',
    950: '#000000',
  },
}

SCSS

$custom: #6c66cb;
$custom-light: #9c91db;
$custom-dark: #000000;

JSON

{
  "hex": "#6c66cb",
  "rgb": {
    "r": 108,
    "g": 102,
    "b": 203
  },
  "hsl": {
    "h": 243.564,
    "s": 49.268,
    "l": 59.804
  },
  "oklch": {
    "l": 0.56539,
    "c": 0.15156,
    "h": 283.1
  },
  "luminance": 0.17003
}

Semantic roles & 50–950 ramp

primary

#6C66CB

secondary

#D8DAB3

accent

#D94FD1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0D15

muted

#7E7D83

Preview Lab

Preview with #6C66CB

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

Preview Lab → · Contrast checker → · Palette generator →