Information about #66B1DF color
Basic facts about this digital color
#66B1DF presents itself as a energetic, saturated steel-blue azure — one that appears airy and pastel-like. In practice it works well for clean interfaces where content needs room to breathe. In The Official Register of Color Names it is almost identical to Caps Blue (#68B1E2). Its next-closest registered neighbors are Malibu (#66B7E1) and Something Blue (#68ADD0).
In RGB terms — rgb(102, 177, 223) — the blue channel does the heavy lifting here. If you plan to put text on a #66B1DF background, choose black — the contrast ratio is 8.9:1 (passing WCAG AAA), while white manages only 2.4:1. Like most of the 16.7 million digital colors, this one is still waiting for a name — naming it takes a minute.
#66B1DF color variations
View this color variations of tints, shades, tones and hues.
#66B1DF color tints
Tints look brighter, pastel, and less intense.
#66B1DF color shades
Shades look darker, richer, and more solid.
#66B1DF color tones
Tones looks more sophisticated and complex than base colors.
#66B1DF color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#66B1DF 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.
Split complementary
Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.
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.
Triadic
Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.
Tetradic
Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.
Square
Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.
Alternatives to #66B1DF color
View adjacent and very similar colors.
Nearest named colors to #66B1DF
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#68B1E2
#66B7E1
#68ADD0
#65B8D1
#5DADEC
#6CB4EE
#76ABDF
#6CA0DC
#71A6D2
#6AB2CA
#51AFE7
#77B7D0
#66B1DF color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#66B1DF
- RGB102, 177, 223
- CMYK47, 18, 0, 13
- CSSrgb(102, 177, 223)
- HSL203°, 65%, 64%
- HSL Precise202.81°, 65.405%, 63.725%
- HSV203°, 54%, 87%
- HSB203°, 54%, 87%
- Normalized R (0.0–1.0)0.400
- Normalized G (0.0–1.0)0.694
- Normalized B (0.0–1.0)0.875
- GLSLvec3(0.400, 0.694, 0.875)
- GLSL with alphavec4(0.400, 0.694, 0.875, 1.000)
- HLSL / Metalfloat3(0.400, 0.694, 0.875)
- Percentage of Red in RGB40%
- Percentage of Green in RGB69.4%
- Percentage of Blue in RGB87.5%
- Color FamilyAzure
- Saturation FamilyHigh Saturation
- Lightness FamilyVery Light
- HEX ID66B1DF
- DECIMAL ID6730207
- Name LengthThis color has no name
- Seen by search & AI crawlers14 times
- Counting from2025-01-01
