Expanded Gamut Printing

/ɪkˈspændɪd ˈɡæmət ˈprɪntɪŋ/

General Definition

Expanded Gamut Printing (EGP), also known as extended color gamut or fixed palette printing, is an advanced process color printing methodology. It expands the reproducible color space far beyond the limitations of standard CMYK by adding three or more extra process ink channels. The most prevalent implementation uses a seven-color set: Cyan, Magenta, Yellow, Black, plus Orange, Green, and Violet (CMYKOGV). The core objective of EGP is to accurately simulate a vast library of brand spot colors using this fixed ink combination, thereby increasing efficiency and color consistency while reducing reliance on custom-mixed spot inks.

Real-World Usage

In high-volume packaging and label production, particularly in flexographic printing, EGP solves critical inefficiencies associated with frequent spot color changes. By replacing numerous custom spot inks with a fixed set of seven process inks, press operators eliminate the need for extensive wash-up cycles between jobs. This drastically reduces make-ready time, waste, and downtime, leading to significant cost savings and higher press utilization.

The strategic power of EGP lies in its ability to consolidate multiple, seemingly disparate print jobs—each with its own unique brand colors—onto a single press run using the same seven inks. This is enabled by sophisticated color separation software, which deconstructs the spectral (L*a*b*) values of target spot colors into accurate combinations of the available CMYKOGV inks. The result is a more stable, predictable, and agile production workflow optimized for just-in-time manufacturing.

Consultant's Note

Implementing EGP represents a fundamental strategic shift, moving from an artisanal, ink-mixing model to a standardized, data-driven color process. The primary investment is not in press hardware, which often requires minimal modification, but in establishing a robust digital color infrastructure. The creation and meticulous maintenance of a highly accurate seven-color ICC profile is the most critical and challenging success factor, as even minor drift in one ink channel can compromise the simulation of dozens of spot colors.

Success mandates an uncompromising commitment to process control. Initial press fingerprinting must be executed with extreme precision, followed by the implementation of automated ink density and color measurement systems to ensure the daily stability of all seven inks. It is crucial to understand that while EGP can effectively match approximately 90% of the Pantone® library, colors with extreme chroma, fluorescence, or metallic effects will still require dedicated spot inks. A well-documented and managed digital workflow, from design through separation to proofing, is non-negotiable for realizing EGP's full potential.

Packdemy Council Insight

Shahida Naeem

Strategic Advisor

Expanded Gamut Printing (EGP) expands the printable colour space beyond CMYK by adding Orange, Green, and Violet inks (CMYKOGV). This fixed-palette approach enables broader Pantone coverage, smoother gradients, and stronger colour vibrancy while minimizing the need for custom spot colours. By working from a stable ink set, printers achieve higher operational efficiency, shorter changeovers, and consistent reproduction across multiple substrates.
The true strength of EGP lies in its LAB-anchored predictability. Instead of relying on visual approximation, colours are built on measurable, device-independent coordinates supported by accurate fingerprinting and spectral optimisation. This creates a controlled path from design intent to printed output, ensuring that designers, prepress teams, and printers work from the same colour truth.

For brands, EGP accelerates approvals and enhances global consistency. For printers, it delivers measurable reductions in waste and production variability. As the packaging industry shifts toward automation and data-driven colour governance, EGP stands as the strategic solution for modern high-quality print.

Aligned with: FOGRA / Idealliance / ICC