Blue screen for when green won’t work
Rosco Chroma Key Blue is a purpose-engineered keying coating used in film, broadcast, streaming and VFX worldwide. Formulated for camera sensors, studio lighting and digital compositing, it delivers the high luminance and saturation that separate a real chroma system from generic blue — and it’s the answer when green appears in your foreground.

When to choose blue over green
- Foreground contains green wardrobe or props
- Foliage or green set elements in shot
- Reflective surfaces prone to green spill
- Products with green packaging or detail
- Film, broadcast and VFX stages
- Streaming and virtual-production studios
- Permanent blue-screen walls and cyc
- Consistent, repeatable keys
Best for — and the alternatives
Chroma Key Blue is best for
- Shots with green in the foreground
- Reducing visible spill on some surfaces
- The same purpose-engineered keying system, in blue
- Film, broadcast and VFX workflows
Need something more specific?
Blue avoids green conflicts, but for standard keys or top-tier VFX:
- Chroma Key Green (5711) → the standard green-screen choice
- DigiComp® HD Blue (5750) → precision digital compositing
- TV White / Black → calibrated cyc backgrounds
Chroma Key Blue specifications
Blue keying is preferred where green spill or green foreground elements would compromise the key. Water-based — soap-and-water clean-up. Test on camera first.
| Type | Purpose-engineered chroma key coating |
| Colour behaviour | High luminance and saturation for keying |
| Finish | Matte, anti-reflection |
| Base | Water-based vinyl acrylic |
| Sizes | 0.95 L, 3.79 L and 19 L |
Typical applications
Blue screens
Blue keying walls and cyc for film and broadcast.
Green foregrounds
Keys cleanly when green is in wardrobe or props.
VFX stages
Reliable colour for compositing workflows.
Which studio & video paint do I need?
Keying colour, calibrated background or ultra-matte black — match the paint to the job:
View Chroma Key Green
View Chroma Key Blue
View DigiComp HD Green
View DigiComp HD Blue
View TV White
View TV Black
Planning a studio or cyc?
Keying, reflectance and lighting all interact. Talk to us about paint choice, primer and coverage before you commit a whole wall or cyclorama.
Keying and reflectance performance depend on lighting, camera and application. Test on a sample and confirm results on camera before committing a full surface.
