#6B66CD#6B66CD

#6B66CD is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.6% C 0.154 H 282.5°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#6B66CD
RGB	rgb(107, 102, 205)
HSL	hsl(243, 51%, 60%)
HSV	hsv(243, 50%, 80%)
CMYK	cmyk(47.8%, 50.2%, 0%, 19.6%)
CIE-LAB	lab(48.30, 29.03, -52.99)
CIE-LCH	lch(48.30, 60.42, 298.72°)
OKLab	oklab(56.59% 0.0333 -0.1508)
OKLCH	oklch(56.59% 0.154 282.5)
XYZ	xyz(21.8309, 17.0352, 59.8836)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B66CD #C8CD66

analogous

#6694CD #6B66CD #9F66CD

triadic

#6B66CD #CD6B66 #66CD6B

tetradic

#6B66CD #CD6694 #C8CD66 #66CD9F

square

#6B66CD #CD6694 #C8CD66 #66CD9F

split-complementary

#6B66CD #CD9F66 #94CD66

monochromatic

#322D8B #433DB9 #6B66CD #9894DC #C4C2EB

Accessibility & contrast

On white

4.76

#6B66CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#6B66CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6B66CD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B66CD	#FFFFFF	#000000	##FFFFFF
##6B66CD	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3676D1

Deuteranopia (green-blind)

#306FCB

Tritanopia (blue-blind)

#487C90

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #6b66cd;
/* rgb */ color: rgb(107, 102, 205);
/* oklch */ color: oklch(56.6% 0.154 282.5);

Tailwind

colors: {
  custom: {
    50: '#9b91dd',
    500: '#6b66cd',
    950: '#000000',
  },
}

SCSS

$custom: #6b66cd;
$custom-light: #9b91dd;
$custom-dark: #000000;

JSON

{
  "hex": "#6b66cd",
  "rgb": {
    "r": 107,
    "g": 102,
    "b": 205
  },
  "hsl": {
    "h": 242.913,
    "s": 50.739,
    "l": 60.196
  },
  "oklch": {
    "l": 0.5659,
    "c": 0.15446,
    "h": 282.5
  },
  "luminance": 0.17036
}

Semantic roles & 50–950 ramp

primary

#6B66CD

secondary

#D9DBB4

accent

#BE27B7

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0D15

muted

#7E7D83

Preview Lab

Preview with #6B66CD

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

Preview Lab → · Contrast checker → · Palette generator →