Information about #666FE5 color

#666FE5 color image

Basic facts about this digital color

In the Register's classification, #666FE5 belongs to the Blue Color Family, featuring High Saturation and Very Light brightness. In numbers: rgb(102, 111, 229) (40% red, 43.5% green, 89.8% blue), or CMYK 50 / 46 / 0 / 10 for print. Curious how these numbers work? Read our RGB color codes guide.

A energetic, saturated deep-sea blue, #666FE5 appears airy and pastel-like. Expect to see shades like this in minimalist layouts, soft backgrounds and pastel palettes. In The Official Register of Color Names it is very close to Blue Lotus (#6960EC). Its next-closest registered neighbors are Brilliant Sapphire Blue (#5177E7) and Eclipto Space Purple (#7068F9).

The recipe behind #666FE5 is rgb(102, 111, 229), with blue as the dominant ingredient. Accessibility-wise, black text works best on #666FE5: 5.0:1 contrast (passing WCAG AA) versus 4.2:1 for white. Out of 16,777,216 possible colors, #666FE5 is still unnamed — it can be claimed and named in The Official Register of Color Names.

#666FE5 color variations

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

#666FE5 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

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

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

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

Tetradic

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

Tetradic color scheme

Square

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

Square color scheme

Nearest named colors to #666FE5

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

#666FE5 color backgrounds & wallpapers

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

Conversions between color systems and etc.

  • HEX#666FE5
  • RGB102, 111, 229
  • CMYK50, 46, 0, 10
  • CSSrgb(102, 111, 229)
  • HSL236°, 71%, 65%
  • HSL Precise235.748°, 70.95%, 64.902%
  • HSV236°, 55%, 90%
  • HSB236°, 55%, 90%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.435
  • Normalized B (0.0–1.0)0.898
  • GLSLvec3(0.400, 0.435, 0.898)
  • GLSL with alphavec4(0.400, 0.435, 0.898, 1.000)
  • HLSL / Metalfloat3(0.400, 0.435, 0.898)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB43.5%
  • Percentage of Blue in RGB89.8%
  • Color Family (Hue)Blue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyVery Light
  • HEX ID666FE5
  • DECIMAL ID6713317
  • Name LengthThis color has no name
  • This page visited6 times
  • Counting from2025-01-01