Information about #666CDD color

#666CDD color image

Basic facts about this digital color

The digital color #666CDD is classified in the Register under the Blue Color Family, with High Saturation and Very Light brightness. Its exact recipe is rgb(102, 108, 221) — 40% red, 42.4% green, 86.7% blue — and for print it converts to CMYK 47 / 44 / 0 / 13. Curious how these numbers work? Read our RGB color codes guide.

A vivid, lively blue, #666CDD floats near the light end of the scale. Expect to see shades like this in clean interfaces where content needs room to breathe. In The Official Register of Color Names it is a near neighbor of Dark Periwinkle (#665FD1). Nearby in the Register you will also find Blue Lotus (#6960EC) and Light Indigo (#6D5ACF).

In RGB terms — rgb(102, 108, 221) — the blue channel does the heavy lifting here. If you plan to put text on a #666CDD background, choose black — the contrast ratio is 4.8:1 (passing WCAG AA), while white manages only 4.4:1. Out of 16,777,216 possible colors, #666CDD is still unnamed — it can be claimed and named in The Official Register of Color Names.

#666CDD color variations

View this color variations of tints, shades, tones and hues.

#666CDD color tints

Tints look brighter, pastel, and less intense.
#666CDD

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#8388E3

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#A2A5EA

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#C1C3F1

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#E0E1F8

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White

#FFFFFF

#666CDD color shades

Shades look darker, richer, and more solid.
#666CDD

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#2F37D1

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#22289E

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#171B69

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#0B0D34

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Black

#000000

#666CDD color tones

Tones looks more sophisticated and complex than base colors.
#666CDD

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#666BCD

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#6A6EBC

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#6F72AA

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#767895

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Grey

#808080

#666CDD color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#DD64CA

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#BE64DD

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#8E64DD

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#666CDD

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#649ADD

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#64CADD

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#64DDBE

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#666CDD color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes
#666CDD
#666CDD

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#DDD764
#DDD764

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Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme
#666CDD
#666CDD

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#A7DD64
#A7DD64

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#DD9B64
#DD9B64

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Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme
#9B64DD
#9B64DD

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#666CDD
#666CDD

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#64A7DD
#64A7DD

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Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme
#666CDD
#666CDD

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#DD646A
#DD646A

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#6ADD64
#6ADD64

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Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme
#666CDD
#666CDD

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#D764DD
#D764DD

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#DDD764
#DDD764

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#6ADD64
#6ADD64

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Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme
#666CDD
#666CDD

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#DD64A7
#DD64A7

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#DDD764
#DDD764

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#64DD9B
#64DD9B

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Nearest named colors to #666CDD

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Dark Periwinkle color link
Dark Periwinkle

#665FD1

Blue Lotus color link
Blue Lotus

#6960EC

Light Indigo color link
Light Indigo

#6D5ACF

Slate Blue color link
Slate Blue

#6A5ACD

Brilliant Phthalo Blue color link
Brilliant Phthalo Blue

#5164E7

Brilliant Sapphire Blue color link
Brilliant Sapphire Blue

#5177E7

Brett-and-Dylan color link
Brett-and-Dylan

#4E76E5

Medium Slate Blue color link
Medium Slate Blue

#7B68EE

Majorelle Blue color link
Majorelle Blue

#6050DC

Brilliant Persian Blue color link
Brilliant Persian Blue

#6451E7

Eclipto Space Purple color link
Eclipto Space Purple

#7068F9

Soft Blue color link
Soft Blue

#6488EA

#666CDD color backgrounds & wallpapers

Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.

#666CDD color image #666CDD color ORCN HD wallpaper 3840x2160 (Desktop)
#666CDD color image #666CDD color ORCN HD wallpaper 1170x2532 (Mobile)
#666CDD color image #666CDD color solid HD wallpaper 3840x2160 (Desktop)
#666CDD color image #666CDD color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#666CDD
  • RGB102, 108, 221
  • CMYK47, 44, 0, 13
  • CSSrgb(102, 108, 221)
  • HSL237°, 64%, 63%
  • HSL Precise236.975°, 63.636%, 63.333%
  • HSV237°, 54%, 87%
  • HSB237°, 54%, 87%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.424
  • Normalized B (0.0–1.0)0.867
  • GLSLvec3(0.400, 0.424, 0.867)
  • GLSL with alphavec4(0.400, 0.424, 0.867, 1.000)
  • HLSL / Metalfloat3(0.400, 0.424, 0.867)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB42.4%
  • Percentage of Blue in RGB86.7%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyVery Light
  • HEX ID666CDD
  • DECIMAL ID6712541
  • Name LengthThis color has no name
  • This page visited0 times
  • Counting from2025-01-01

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