Colorado Window Tint Laws 2026: A Guide for Castle Rock Drivers

April 18, 20264 min read

Navigating the ins and outs of Colorado's window tint laws can be confusing, but it's essential for every driver in Castle Rock to understand the regulations to avoid fines and ensure road safety. As of 2026, the laws (Colorado Revised Statutes 42-4-227) are very specific about how dark your window tint can be. At Hypershade Window Tinting, we not only provide premium tinting services but also ensure every vehicle we work on is fully compliant with state law.

Why Window Tint is Essential for Colorado Drivers

Before we dive into the legal specifics, it's worth remembering why window tint is so important in our state. Living at a high altitude like we do in Castle Rock (over 6,200 feet) means we're exposed to significantly more intense UV radiation. This can damage your skin and your car's interior. A quality window tint is your first line of defense, blocking harmful UV rays and keeping your car cooler. For more on the benefits, check out our article on the best window tint for high altitude.

Breaking Down the Legal VLT Percentages

The most critical part of the law revolves around Visible Light Transmission (VLT), which is the percentage of light the tint allows to pass through. Here's what you need to know for 2026:

Front Side Windows: Must have a VLT of more than 27%. This means the tint cannot block more than 73% of the light.

Rear Side and Back Windows: For most sedans and SUVs, these windows must also adhere to the 27% VLT limit.

Windshield: You can apply a non-reflective tint with at least 70% VLT to the top 4 inches of the windshield. The rest of the windshield cannot be tinted.

There is an exception: if your vehicle's front side windows and windshield both have a VLT of over 70%, then the windows to the rear of the driver can have any level of darkness.

Prohibited Tint Types and Colors in Colorado

Beyond the VLT percentages, Colorado law also prohibits certain types of tint to ensure road safety:

Reflective and Metallic Tints: Any tint that has a mirrored or metallic appearance is illegal. This is to prevent glare that could be hazardous to other drivers.

Restricted Colors: The law explicitly forbids the use of red and amber colors for window tints.

Violating these regulations is a Class B traffic infraction and can result in fines. It's also worth noting that if your back window is tinted, your vehicle must be equipped with dual side mirrors.

Frequently Asked Questions About Colorado Tint Laws

Is 20% window tint legal in Colorado? No, for most vehicles registered in Colorado, the legal limit for front side windows is 27% VLT. A 20% tint is too dark and would be illegal.

Can I tint my entire windshield? No, you can only apply a non-reflective tint to the top 4 inches of the windshield.

Are there medical exemptions for darker window tint? No, Colorado law does not provide for any medical exemptions for window tinting.

Ensuring Your Tint is Compliant in Castle Rock

The best way to ensure your window tint is legal is to have it installed by a reputable professional. At Hypershade Window Tinting, we use high-quality films and precise installation techniques to guarantee your tint not only looks great but also complies with all Colorado window tint laws. We can help you choose a film that provides the UV and heat rejection you need while staying within the legal VLT limits. Ready to get a legal, high-performance tint? Give us a call at (720) 443-0857 to schedule your appointment in Castle Rock today.