#6660CD#6660CD

#6660CD is a mid, vivid blue. Relative luminance 0.156; OKLCH L 55.1% C 0.163 H 282.1°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#6660CD
RGB	rgb(102, 96, 205)
HSL	hsl(243, 52%, 59%)
HSV	hsv(243, 53%, 80%)
CMYK	cmyk(50.2%, 53.2%, 0%, 19.6%)
CIE-LAB	lab(46.44, 31.58, -56.01)
CIE-LCH	lch(46.44, 64.29, 299.41°)
OKLab	oklab(55.1% 0.0342 -0.1598)
OKLCH	oklch(55.1% 0.163 282.1)
XYZ	xyz(20.6785, 15.5972, 59.6667)
Luminance	0.1560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6660CD #C7CD60

analogous

#6091CD #6660CD #9D60CD

triadic

#6660CD #CD6660 #60CD66

tetradic

#6660CD #CD6091 #C7CD60 #60CD9D

square

#6660CD #CD6091 #C7CD60 #60CD9D

split-complementary

#6660CD #CD9D60 #91CD60

monochromatic

#302B88 #4039B6 #6660CD #938FDC #C0BDEA

Accessibility & contrast

On white

5.10

#6660CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#6660CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6660CD

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6660CD	#FFFFFF	#000000	##FFFFFF
##6660CD	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2572D1

Deuteranopia (green-blind)

#1A6ACB

Tritanopia (blue-blind)

#3E788D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #6660cd;
/* rgb */ color: rgb(102, 96, 205);
/* oklch */ color: oklch(55.1% 0.163 282.1);

Tailwind

colors: {
  custom: {
    50: '#998ddd',
    500: '#6660cd',
    950: '#000000',
  },
}

SCSS

$custom: #6660cd;
$custom-light: #998ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#6660cd",
  "rgb": {
    "r": 102,
    "g": 96,
    "b": 205
  },
  "hsl": {
    "h": 243.303,
    "s": 52.153,
    "l": 59.02
  },
  "oklch": {
    "l": 0.55098,
    "c": 0.16347,
    "h": 282.1
  },
  "luminance": 0.15598
}

Semantic roles & 50–950 ramp

primary

#6660CD

secondary

#D7DAAF

accent

#DC4CD4

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #6660CD

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

Preview Lab → · Contrast checker → · Palette generator →