Information about #66D5CC color
Basic facts about this digital color
A clearly saturated aqua cyan, #66D5CC has a delicate, washed-out lightness. Designers typically reach for tones like this for airy backdrops, whitespace-heavy designs and gentle gradients. In The Official Register of Color Names it is a hair away from Kathy & Michael at 20 Years and Beyond (#64D8D0). Slightly further away sit Downy (#6FD2BE) and Pastel Ocean (#6ECDDB).
The recipe behind #66D5CC is rgb(102, 213, 204), with green as the dominant ingredient. On this background, black text reaches a 12.0:1 contrast ratio (passing WCAG AAA); white stays at 1.8:1. Out of 16,777,216 possible colors, #66D5CC is still unnamed — it can be claimed and named in The Official Register of Color Names.
#66D5CC color variations
View this color variations of tints, shades, tones and hues.
#66D5CC color tints
Tints look brighter, pastel, and less intense.
#66D5CC color shades
Shades look darker, richer, and more solid.
#66D5CC color tones
Tones looks more sophisticated and complex than base colors.
#66D5CC color hues
A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#66D5CC 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 #66D5CC color
View adjacent and very similar colors.
Nearest named colors to #66D5CC
The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.
#6FD2BE
#6ECDDB
#5FC9BF
#78C7C7
#70EACA
#71D9E2
#81D8D0
#81D3D1
#77BFC7
#78D1B6
#51E7D5
#66D5CC color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#66D5CC
- RGB102, 213, 204
- CMYK44, 0, 4, 16
- CSSrgb(102, 213, 204)
- HSL175°, 57%, 62%
- HSL Precise175.135°, 56.923%, 61.765%
- HSV175°, 52%, 84%
- HSB175°, 52%, 84%
- Normalized R (0.0–1.0)0.400
- Normalized G (0.0–1.0)0.835
- Normalized B (0.0–1.0)0.800
- GLSLvec3(0.400, 0.835, 0.800)
- GLSL with alphavec4(0.400, 0.835, 0.800, 1.000)
- HLSL / Metalfloat3(0.400, 0.835, 0.800)
- Percentage of Red in RGB40%
- Percentage of Green in RGB83.5%
- Percentage of Blue in RGB80%
- Color FamilyCyan
- Saturation FamilyModerate Saturation
- Lightness FamilyVery Light
- HEX ID66D5CC
- DECIMAL ID6739404
- Name LengthThis color has no name
- Seen by search & AI crawlers12 times
- Counting from2025-01-01
