Information about #21EFFF color

#21EFFF color image

Basic facts about this digital color

The digital color #21EFFF is classified in the Register under the Cyan Color Family, with Full Saturation and Light brightness. In numbers: rgb(33, 239, 255) (12.9% red, 93.7% green, 100% blue), or CMYK 87 / 6 / 0 / 0 for print. Curious how these numbers work? Read our RGB color codes guide.

The color #21EFFF reads as a pure, full-strength aqua cyan and carries an easy, daylight feel. Expect to see shades like this in logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is practically indistinguishable from Bright Light Blue (#26F7FD). Slightly further away sit Lotion Blue (#15F2FD) and Neon Aqua (#21F8F6).

The recipe behind #21EFFF is rgb(33, 239, 255), with blue as the dominant ingredient. On this background, black text reaches a 14.9:1 contrast ratio (passing WCAG AAA); white stays at 1.4:1. Out of 16,777,216 possible colors, #21EFFF is still unnamed — it can be claimed and named in The Official Register of Color Names.

#21EFFF color variations

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

#21EFFF color tints

Tints look brighter, pastel, and less intense.
#21EFFF

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#4BF3FF

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#78F6FF

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#A5F9FF

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#D2FCFF

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White

#FFFFFF

#21EFFF color shades

Shades look darker, richer, and more solid.
#21EFFF

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#00D5E4

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#00A0AB

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#006B72

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#003539

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Black

#000000

#21EFFF color tones

Tones looks more sophisticated and complex than base colors.
#21EFFF

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#30DCE8

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#42C6D0

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#55B0B6

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#6A989B

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Grey

#808080

#21EFFF color hues

A hue refers to the basic neighbors of color and is variation of base color on the color wheel.
#5A1FFF

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#1F3DFF

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#1F96FF

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#21EFFF

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#1FFFB4

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#1FFF5A

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#3DFF1F

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#21EFFF 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
#21EFFF
#21EFFF

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#FF2E1F
#FF2E1F

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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
#21EFFF
#21EFFF

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#FF9E1F
#FF9E1F

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#FF1F80
#FF1F80

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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
#1F80FF
#1F80FF

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#21EFFF
#21EFFF

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#1FFF9E
#1FFF9E

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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
#21EFFF
#21EFFF

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#FF1FF0
#FF1FF0

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#F0FF1F
#F0FF1F

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Tetradic

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

Tetradic color scheme
#21EFFF
#21EFFF

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#2E1FFF
#2E1FFF

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#FF2E1F
#FF2E1F

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#F0FF1F
#F0FF1F

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Square

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

Square color scheme
#21EFFF
#21EFFF

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#9E1FFF
#9E1FFF

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#FF2E1F
#FF2E1F

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#80FF1F
#80FF1F

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Nearest named colors to #21EFFF

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

Bright Light Blue color link
Bright Light Blue

#26F7FD

Lotion Blue color link
Lotion Blue

#15F2FD

Neon Aqua color link
Neon Aqua

#21F8F6

Fluorescent Blue color link
Fluorescent Blue

#15F4EE

Electric Turquoise color link
Electric Turquoise

#26FFED

be Supernormal. teal color link
be Supernormal. teal

#27F1E7

LAURON color link
LAURON

#38FDFF

Hot Turquoise color link
Hot Turquoise

#26FFE9

Ahlam's Vibe color link
Ahlam's Vibe

#0FFAEA

Metallic Cyan color link
Metallic Cyan

#37F5EB

Bright Aqua color link
Bright Aqua

#0BF9EA

Neon Turquoise color link
Neon Turquoise

#04FFF7

#21EFFF color backgrounds & wallpapers

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

#21EFFF color image #21EFFF color ORCN HD wallpaper 3840x2160 (Desktop)
#21EFFF color image #21EFFF color ORCN HD wallpaper 1170x2532 (Mobile)
#21EFFF color image #21EFFF color solid HD wallpaper 3840x2160 (Desktop)
#21EFFF color image #21EFFF color solid HD wallpaper 1170x2532 (Mobile)

Conversions between color systems and etc.

  • HEX#21EFFF
  • RGB33, 239, 255
  • CMYK87, 6, 0, 0
  • CSSrgb(33, 239, 255)
  • HSL184°, 100%, 56%
  • HSL Precise184.324°, 100%, 56.471%
  • HSV184°, 87%, 100%
  • HSB184°, 87%, 100%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.937
  • Normalized B (0.0–1.0)1.000
  • GLSLvec3(0.129, 0.937, 1.000)
  • GLSL with alphavec4(0.129, 0.937, 1.000, 1.000)
  • HLSL / Metalfloat3(0.129, 0.937, 1.000)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB93.7%
  • Percentage of Blue in RGB100%
  • Color FamilyCyan
  • Saturation FamilyFull Saturation
  • Lightness FamilyLight
  • HEX ID21EFFF
  • DECIMAL ID2224127
  • Name LengthThis color has no name
  • Seen by search & AI crawlers13 times
  • Counting from2025-01-01

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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.