Information about #66D4EA color

#66D4EA color image

Basic facts about this digital color

#66D4EA falls into the Cyan Color Family — High Saturation, Very Light brightness. The mix behind it: rgb(102, 212, 234) — 40% red, 83.1% green, 91.8% blue; the print equivalent is CMYK 52 / 9 / 0 / 8. Curious how these numbers work? Read our RGB color codes guide.

A energetic, saturated water-like cyan, #66D4EA floats near the light end of the scale. Expect to see shades like this in airy backdrops, whitespace-heavy designs and gentle gradients. In The Official Register of Color Names it is just a few steps away from Aquamarine Blue (#71D9E2). Nearby in the Register you will also find Pastel Ocean (#6ECDDB) and Brilliant Arctic Blue (#51D5E7).

The recipe behind #66D4EA is rgb(102, 212, 234), with blue as the dominant ingredient. On this background, black text reaches a 12.2:1 contrast ratio (passing WCAG AAA); white stays at 1.7:1. No one has named #66D4EA so far. Register a name for it and it becomes a permanent record.

#66D4EA color variations

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

#66D4EA color tints

Tints look brighter, pastel, and less intense.
#66D4EA

Color has no name
#84DCEE

Color has no name
#A3E5F2

Color has no name
#C1EDF6

Color has no name
#E0F6FA

Color has no name
White

#FFFFFF

#66D4EA color shades

Shades look darker, richer, and more solid.
#66D4EA

Color has no name
#2BC3E2

Color has no name
#1898B1

Color has no name
#106576

Color has no name
#08323B

Color has no name
Black

#000000

#66D4EA color tones

Tones looks more sophisticated and complex than base colors.
#66D4EA

Color has no name
#66C6D9

Color has no name
#69B7C6

Color has no name
#6EA6B1

Color has no name
#759399

Color has no name
Grey

#808080

#66D4EA color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#9666EA

Color has no name
#666AEA

Color has no name
#669FEA

Color has no name
#66D4EA

Color has no name
#66EACB

Color has no name
#66EA96

Color has no name
#6AEA66

Color has no name

#66D4EA 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
#66D4EA
#66D4EA

Color has no name

#EA7C66
#EA7C66

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
#66D4EA
#66D4EA

Color has no name

#EABE66
#EABE66

Color has no name

#EA6692
#EA6692

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
#6692EA
#6692EA

Color has no name

#66D4EA
#66D4EA

Color has no name

#66EABE
#66EABE

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
#66D4EA
#66D4EA

Color has no name

#EA66D4
#EA66D4

Color has no name

#D4EA66
#D4EA66

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
#66D4EA
#66D4EA

Color has no name

#7C66EA
#7C66EA

Color has no name

#EA7C66
#EA7C66

Color has no name

#D4EA66
#D4EA66

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
#66D4EA
#66D4EA

Color has no name

#BE66EA
#BE66EA

Color has no name

#EA7C66
#EA7C66

Color has no name

#92EA66
#92EA66

Color has no name

Nearest named colors to #66D4EA

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

Aquamarine Blue color link
Aquamarine Blue

#71D9E2

Pastel Ocean color link
Pastel Ocean

#6ECDDB

Brilliant Arctic Blue color link
Brilliant Arctic Blue

#51D5E7

Light Brilliant Cerulean color link
Light Brilliant Cerulean

#65D8FF

Middle Blue color link
Middle Blue

#7ED4E6

Palm Beach Sky color link
Palm Beach Sky

#7AE2F0

Light Brilliant Cornflower Blue color link
Light Brilliant Cornflower Blue

#65C5FF

Kathy & Michael at 20 Years and Beyond color link
Kathy & Michael at 20 Years and Beyond

#64D8D0

Medium Sky Blue color link
Medium Sky Blue

#80DAEB

Lightblue color link
Lightblue

#7BC8F6

Brilliant Cerulean color link
Brilliant Cerulean

#51C2E7

Blue Diamond color link
Blue Diamond

#4EE2EC

#66D4EA color backgrounds & wallpapers

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

#66D4EA color image #66D4EA color ORCN HD wallpaper 3840x2160 (Desktop)
#66D4EA color image #66D4EA color ORCN HD wallpaper 1170x2532 (Mobile)
#66D4EA color image #66D4EA color solid HD wallpaper 3840x2160 (Desktop)
#66D4EA color image #66D4EA color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#66D4EA
  • RGB102, 212, 234
  • CMYK52, 9, 0, 8
  • CSSrgb(102, 212, 234)
  • HSL190°, 76%, 66%
  • HSL Precise190°, 75.862%, 65.882%
  • HSV190°, 56%, 92%
  • HSB190°, 56%, 92%
  • Normalized R (0.0–1.0)0.400
  • Normalized G (0.0–1.0)0.831
  • Normalized B (0.0–1.0)0.918
  • GLSLvec3(0.400, 0.831, 0.918)
  • GLSL with alphavec4(0.400, 0.831, 0.918, 1.000)
  • HLSL / Metalfloat3(0.400, 0.831, 0.918)
  • Percentage of Red in RGB40%
  • Percentage of Green in RGB83.1%
  • Percentage of Blue in RGB91.8%
  • Color FamilyCyan
  • Saturation FamilyHigh Saturation
  • Lightness FamilyVery Light
  • HEX ID66D4EA
  • DECIMAL ID6739178
  • Name LengthThis color has no name
  • Seen by search & AI crawlers37 times
  • Counting from2025-01-01

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

ORCN is an independent private organisation that maintains a public register — not a governmental institution or an international standards organisation — in which a name is linked to a specific digital colour code. Registration gives the registrant the exclusive right, within the ORCN register, to have that name recorded against that colour code.

Important: a digital colour itself belongs to no one in law. That right exists only within the ORCN register: registration creates no ownership, trademark, copyright or design rights anywhere. Legal exclusivity outside the register, where it is available at all, arises separately under applicable trademark law and is generally limited to particular goods, services and jurisdictions.