Information about #5B66DB color

#5B66DB color image

Basic facts about this digital color

The digital color #5B66DB is classified in the Register under the Blue Color Family, with High Saturation and Very Light brightness. In numbers: rgb(91, 102, 219) (35.7% red, 40% green, 85.9% blue), or CMYK 50 / 46 / 0 / 14 for print. Curious how these numbers work? Read our RGB color codes guide.

The color #5B66DB reads as a strongly colored deep-sea blue and appears airy and pastel-like. Expect to see shades like this in clean interfaces where content needs room to breathe. In The Official Register of Color Names it is very close to Brilliant Phthalo Blue (#5164E7). Its next-closest registered neighbors are Dark Periwinkle (#665FD1) and Savoy Blue (#4B61D1).

In RGB terms — rgb(91, 102, 219) — the blue channel does the heavy lifting here. If you plan to put text on a #5B66DB background, choose white — the contrast ratio is 4.8:1 (passing WCAG AA), while black manages only 4.4:1. No one has named #5B66DB so far. Register a name for it and it becomes a permanent record.

#5B66DB color variations

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

#5B66DB 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 #5B66DB

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

Conversions between color systems and etc.

  • HEX#5B66DB
  • RGB91, 102, 219
  • CMYK50, 46, 0, 14
  • CSSrgb(91, 102, 219)
  • HSL235°, 64%, 61%
  • HSL Precise234.844°, 64%, 60.784%
  • HSV235°, 58%, 86%
  • HSB235°, 58%, 86%
  • Normalized R (0.0–1.0)0.357
  • Normalized G (0.0–1.0)0.400
  • Normalized B (0.0–1.0)0.859
  • GLSLvec3(0.357, 0.400, 0.859)
  • GLSL with alphavec4(0.357, 0.400, 0.859, 1.000)
  • HLSL / Metalfloat3(0.357, 0.400, 0.859)
  • Percentage of Red in RGB35.7%
  • Percentage of Green in RGB40%
  • Percentage of Blue in RGB85.9%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyVery Light
  • HEX ID5B66DB
  • DECIMAL ID5990107
  • Name LengthThis color has no name
  • Seen by search & AI crawlers19 times
  • Counting from2025-01-01