#666CCD#666CCD

#666CCD is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.4% C 0.147 H 278.0°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#666CCD
RGB	rgb(102, 108, 205)
HSL	hsl(237, 51%, 60%)
HSV	hsv(237, 50%, 80%)
CMYK	cmyk(50.2%, 47.3%, 0%, 19.6%)
CIE-LAB	lab(49.44, 24.25, -51.19)
CIE-LCH	lch(49.44, 56.64, 295.35°)
OKLab	oklab(57.36% 0.0205 -0.1456)
OKLCH	oklch(57.36% 0.147 278)
XYZ	xyz(21.8581, 17.9564, 60.0599)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666CCD #CDC766

analogous

#669FCD #666CCD #9466CD

triadic

#666CCD #CD666C #6CCD66

tetradic

#666CCD #CD669F #CDC766 #66CD94

square

#666CCD #CD669F #CDC766 #66CD94

split-complementary

#666CCD #CD9466 #9FCD66

monochromatic

#2D338B #3D44B9 #666CCD #9498DC #C2C5EB

Accessibility & contrast

On white

4.57

#666CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#666CCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666CCD

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666CCD	#FFFFFF	#000000	##000000
##666CCD	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#417AD1

Deuteranopia (green-blind)

#3772CB

Tritanopia (blue-blind)

#3D8193

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #666ccd;
/* rgb */ color: rgb(102, 108, 205);
/* oklch */ color: oklch(57.4% 0.147 278.0);

Tailwind

colors: {
  custom: {
    50: '#9896dd',
    500: '#666ccd',
    950: '#000000',
  },
}

SCSS

$custom: #666ccd;
$custom-light: #9896dd;
$custom-dark: #000000;

JSON

{
  "hex": "#666ccd",
  "rgb": {
    "r": 102,
    "g": 108,
    "b": 205
  },
  "hsl": {
    "h": 236.505,
    "s": 50.739,
    "l": 60.196
  },
  "oklch": {
    "l": 0.57355,
    "c": 0.14705,
    "h": 278
  },
  "luminance": 0.17958
}

Semantic roles & 50–950 ramp

primary

#666CCD

secondary

#DBD9B4

accent

#B527BE

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #666CCD

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

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