Information about #666DDB color

#666DDB color image

Basic facts about this digital color

#666DDB falls into the Blue Color Family — High Saturation, Very Light brightness. Its exact recipe is rgb(102, 109, 219) — 40% red, 42.7% green, 85.9% blue — and for print it converts to CMYK 46 / 43 / 0 / 14. New to color codes? See our guide to RGB color codes.

The color #666DDB reads as a energetic, saturated deep-sea blue and appears airy and pastel-like. Designers typically reach for tones like this for minimalist layouts, soft backgrounds and pastel palettes. In The Official Register of Color Names it is a near neighbor of Dark Periwinkle (#665FD1). Its next-closest registered neighbors are Blue Lotus (#6960EC) and Light Indigo (#6D5ACF).

The recipe behind #666DDB is rgb(102, 109, 219), with blue as the dominant ingredient. Accessibility-wise, black text works best on #666DDB: 4.8:1 contrast (passing WCAG AA) versus 4.4:1 for white. Out of 16,777,216 possible colors, #666DDB is still unnamed — it can be claimed and named in The Official Register of Color Names.

#666DDB color variations

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

#666DDB color tints

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

Color has no name
#848AE2

Color has no name
#A3A7E9

Color has no name
#C1C4F0

Color has no name
#E0E1F7

Color has no name
White

#FFFFFF

#666DDB color shades

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

Color has no name
#323CCE

Color has no name
#242C9C

Color has no name
#181D68

Color has no name
#0C0E34

Color has no name
Black

#000000

#666DDB color tones

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

Color has no name
#676ECC

Color has no name
#6B70BB

Color has no name
#7074A9

Color has no name
#777995

Color has no name
Grey

#808080

#666DDB color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#DB66CB

Color has no name
#BB66DB

Color has no name
#8D66DB

Color has no name
#666DDB

Color has no name
#669CDB

Color has no name
#66CBDB

Color has no name
#66DBBB

Color has no name

#666DDB 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
#666DDB
#666DDB

Color has no name

#DBD366
#DBD366

Color has no name

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
#666DDB
#666DDB

Color has no name

#A8DB66
#A8DB66

Color has no name

#DB9966
#DB9966

Color has no name

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
#9966DB
#9966DB

Color has no name

#666DDB
#666DDB

Color has no name

#66A8DB
#66A8DB

Color has no name

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
#666DDB
#666DDB

Color has no name

#DB666E
#DB666E

Color has no name

#6EDB66
#6EDB66

Color has no name

Tetradic

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

Tetradic color scheme
#666DDB
#666DDB

Color has no name

#D366DB
#D366DB

Color has no name

#DBD366
#DBD366

Color has no name

#6EDB66
#6EDB66

Color has no name

Square

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

Square color scheme
#666DDB
#666DDB

Color has no name

#DB66A8
#DB66A8

Color has no name

#DBD366
#DBD366

Color has no name

#66DB99
#66DB99

Color has no name

Nearest named colors to #666DDB

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

Misty Lupine color link
Misty Lupine

#7983D3

Toolbox color link
Toolbox

#746CC0

Brilliant Persian Blue color link
Brilliant Persian Blue

#6451E7

#666DDB color backgrounds & wallpapers

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

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

Conversions between color systems and etc.

  • HEX#666DDB
  • RGB102, 109, 219
  • CMYK46, 43, 0, 14
  • CSSrgb(102, 109, 219)
  • HSL236°, 62%, 63%
  • HSL Precise236.41°, 61.905%, 62.941%
  • HSV236°, 53%, 86%
  • HSB236°, 53%, 86%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.427
  • Normalized B (0.0–1.0)0.859
  • GLSLvec3(0.400, 0.427, 0.859)
  • GLSL with alphavec4(0.400, 0.427, 0.859, 1.000)
  • HLSL / Metalfloat3(0.400, 0.427, 0.859)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB42.7%
  • Percentage of Blue in RGB85.9%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyVery Light
  • HEX ID666DDB
  • DECIMAL ID6712795
  • Name LengthThis color has no name
  • Seen by search & AI crawlers7 times
  • Counting from2025-01-01

Copyright © 2021-2026 The Official Register of Color Names. All Rights Reserved.