SEPTUS INSIGHTS / DESIGN & PRODUCTION
RGB vs CMYK: Understanding Colour in Digital and Print Design
Why colours look different on screen and in print—and how thoughtful colour management keeps corporate communications consistent.
Have you ever noticed that a colour looks vibrant on your computer screen but appears slightly different when printed?
This is a common challenge in graphic design and corporate publishing. The reason often comes down to two colour models: RGB and CMYK. Understanding the difference is essential when preparing websites, digital annual reports, corporate brochures, printed publications and other marketing materials.
RGB vs CMYK: What Are They and How Do They Differ?
RGB and CMYK are two different ways of producing colour. Compare how they work, where they are used and which one is right for your project.
Red, Green and Blue
RGB is the colour model used by computer monitors, smartphones, tablets and televisions.
It combines different intensities of coloured light. Adding more light makes colours brighter; all three at maximum intensity produce white.
RGB can display bright, vivid shades that may be difficult to reproduce with standard printing inks.
Best used for
- Websites and digital platforms
- Digital annual reports and e-publications
- Social media graphics
- Videos and motion graphics
- Email marketing and presentations
Cyan, Magenta, Yellow and Key (Black)
CMYK is the colour model commonly used in commercial printing.
It combines coloured inks on paper. The inks absorb some wavelengths of light and reflect others, creating the colours we see.
Some vivid RGB shades cannot be reproduced exactly in CMYK and may look softer in print.
Best used for
- Printed annual reports
- Corporate brochures and profiles
- IPO prospectuses and circulars
- Marketing collateral
- Posters, flyers and printed publications
At a glance
Light is added to make colours brighter.
Inks absorb and reflect light.
Easy way to remember: RGB = screens and CMYK = print. Always confirm the final colour requirements with your design agency.
Why Do Colours Change When Printed?
A design may look perfect on screen, but printing the same artwork can produce noticeably different results. There are several reasons for this:
Different colour gamuts
RGB and CMYK have different colour ranges. Some vivid greens, blues and fluorescent shades cannot be reproduced exactly using standard CMYK printing.
Screen versus paper
Digital screens emit light, while printed materials reflect light. This fundamental difference affects how we perceive colours.
Paper and printing conditions
Paper, ink, printing process and surface finish influence colour. Non-laminated paper, for example, may produce softer-looking colours than laminated paper.
Colour conversion
RGB colours outside the printable CMYK range must be adjusted to achievable equivalents, sometimes changing brightness, saturation or tone.
How to Maintain Colour Consistency Across Digital and Print
For companies with established corporate identities, maintaining consistent brand colours across different communication platforms is important.
Choose the right colour mode from the beginning
Use RGB for screen-based communications and appropriate CMYK colour settings for commercial printing.
Establish clear corporate colour specifications
A corporate identity guideline should ideally define RGB, HEX, CMYK and, where appropriate, Pantone colour references for different applications.
Avoid relying solely on screen appearance
Monitors vary in brightness, calibration and colour accuracy. A colour that looks correct on one screen may appear different on another.
Why This Matters for Corporate Communications
For businesses producing both digital and printed communications, colour consistency plays an important role in maintaining a professional brand identity.
A corporate annual report, for example, may be published as a printed book, an interactive PDF and a digital annual report hosted online. Although the content and visual identity may be consistent, each format requires different technical considerations.
Applying the correct colour model and production workflow helps ensure that corporate colours, photography, charts and graphics are reproduced appropriately across different media.
Bringing Digital and Print Together
At Septus Singapore, we understand that effective corporate communications extend beyond visual design. They also require careful attention to production details, colour management and consistency across platforms.
With more than 20 years of experience in corporate publishing, we provide integrated solutions covering design and layout, financial typesetting, printing and digital publications.
Whether developing a printed annual report or a digital corporate publication, our focus is on delivering clear, professional and consistent communications that reflect each client's corporate identity.