3CX logo: the text 3CX in blue, white, and gray on a dark rectangle.
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3CX

3CX is a Cyprus-based software company founded in 2005 by Nick Galea that develops an enterprise IP PBX phone system, live chat and video conferencing tools. Its logo is a wordmark of the alphanumeric name 3CX in a sans-serif typeface.

Country: Global

Industry: Software

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3CX is a Cyprus-based software company that develops an enterprise IP PBX phone system, along with live chat and video conferencing tools. Founded in 2005 by Nick Galea, the company has grown to serve more than 350,000 customers in 190 countries.[1] The 3CX logo is a wordmark built around the company’s alphanumeric name, which is registered as a trademark with the pseudo mark “THREE CX.”[2]

Design and History

The 3CX mark is a rectangular logo featuring the “3CX” text in a clean, modern sans-serif arrangement. The wordmark is typically rendered in a bright cerulean blue, with dark gray and white used as supporting colors across applications.[3] The company’s official brand colors are documented as cerulean (#0597D4), white (#FFFFFF), and a dark gray known as Mine Shaft (#333333).[3]

3CX was founded in 2005, when VoIP was still an emerging technology, and the company has since evolved from a PBX phone system into a broader communications platform.[1] The company registered its “3CX” word mark with the United States Patent and Trademark Office in August 2007, covering “computer software for creating and operating a computer based phone system.”[2] A separate figurative mark for 3CX was registered internationally on March 12, 2007.[4]

In early 2016, a 3CX representative noted on the company’s community forum that an “image revamp” was being planned, with the 3CX logo set to appear smaller in many places while remaining in place across branding.[5] The company has stated it will never offer a white-label solution, keeping the 3CX branding on its products.[5]

Meaning and Symbolism

The name “3CX” is registered with the pseudo mark “THREE CX,” indicating the name is read as “three CX.”[2] The company’s official marketing guidelines do not document any specific symbolic meaning for the logo’s colors or shapes. The logo is protected by usage rules that prohibit modification, redrawing, stretching, or adding graphics or text to the mark.[6]

Typography and Design

The 3CX wordmark uses a clean, modern sans-serif typeface that combines the numeral “3” with the letters “CX.” The company’s official brand guidelines require that the logo’s original proportions be maintained without stretching or condensing, and that no one re-draw the logo or create their own version.[6] The logo appears in blue or dark gray depending on the background, consistent with the documented brand color palette of cerulean, white, and Mine Shaft.[3]

Logo Index is an independent educational archive covering logos, visual identities and graphic design history. All trademarks and brand assets remain the property of their respective owners.

Logo data

Measured from the original SVG file on 30/09/2026.

Colors

3 colors

  • #373737Grey, 75%

    RGB 55, 55, 55; CMYK 0, 0, 0, 78

    White text 11.9:1 (passes AA)

  • #FFFFFFWhite, 15%

    RGB 255, 255, 255; CMYK 0, 0, 0, 0

    Black text 21.0:1 (passes AA)

  • #009ADEBlue, 9.7%

    RGB 0, 154, 222; CMYK 100, 31, 0, 13

    Black text 6.7:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Software

754 measured Software logos

Only 8% of Software logos in the archive use grey as the main color.

  • Main color grey8%
  • Wordmark26%
  • 3 colors13%
  • Most common main color here: black33%

From measured files, not tags. Updated 28/10/2026.

Structure

Logo type
WordmarkClassified by AI
Proportions
2.7 : 1Horizontal
Ink coverage
100%0% empty space inside the outline
Symmetry
Mirror-symmetric100% left-right match
Outline
RectangularOverall silhouette
Complexity
Moderate6 shapes, about 199 points

Tints and shades

Click a step to copy

#373737

#009ADE

Typography

Lettering style: Geometric sans, uppercase.

This is a style class, not the exact font. The font has not been documented.

Free fonts in this style: Montserrat, Outfit, Urbanist

Visual description

Classified by AI

Style
Geometric, flat, minimal
Layout
Lettering on its own
Techniques
Negative space, letter used as symbol
Text in the logo
3CX

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