Colorado Tint Laws: Legal Limits, Tint Stops, and Crash Claims

Most drivers who look up Colorado’s tint rules want to know one thing: will this film get me pulled over? It can, but the ticket is the small problem. The bigger one is what dark glass does to your ability to see a cyclist at dusk, and to other drivers’ ability to see you, and that is the part that turns up later in crash claims. This post covers the legal limits for each window, what a stop and a ticket look like, and how tint can shape fault after a collision. If a crash has already happened, a car accident lawyer in Denver at Boesen Law can look at the evidence with you, free and in person.

Colorado Tint Limits, Window by Window

The rules live in C.R.S. § 42-4-227. They are written in terms of light transmittance, the share of outside light that makes it through the glass. The lower the number, the darker the window. What gets measured is the whole window, film and glass together, so a film labeled 35% on glass that already has a slight factory shade will read darker than the label.

• Windshield. It must let in at least 70% of light. The one allowance is a strip across the top, no deeper than four inches from the top edge. That strip cannot be red or amber, cannot distort colors or carry lettering that blocks your view, and cannot throw more glare at other drivers than the bare windshield would.
• Front side windows. At least 27% light transmittance. This is the number most tint shops mean when they talk about the Colorado limit.
• Back side windows and rear window. Also 27%, with one exception. They may go darker if the front side windows and the windshield both let in at least 70%. In practice that means dark rear glass is legal only on a vehicle whose front side windows are close to clear. And when the rear view is blocked, a separate statute, § 42-4-226, requires an outside mirror on each side.
• Factory privacy glass. Glass that came tinted from the manufacturer in a way federal rules approve is allowed, and so is a replacement that meets the same standard.
• Mirrored or metallic film. Not allowed on any window, at any darkness.
• Medical needs. The statute contains no medical exemption for private vehicles. Clear or very light film that blocks UV light but stays above the limits is a legal option for people bothered by sun exposure.
• Out-of-state plates. The 27% rule is written for vehicles registered in Colorado. In 2019, lawmakers considered House Bill 19-1067, which would have set a 20% floor for out-of-state vehicles, and a House committee postponed it indefinitely. Once you register a car here, the Colorado numbers apply.

If you are unsure whether the car that hit you, or your own, met these limits, Boesen Law can find out before the film is peeled off or the car is sold for salvage.

For answers to your questions, call:
(303) 999-9999

Getting Stopped for Tint: What the Law Allows

This is the question drivers search most, and the answer depends on how the stop starts and what the officer finds.

Tint Alone Can Justify a Stop

Window tint that breaks § 42-4-227 is a traffic violation on its own. An officer who sees glass that looks darker than the law allows can pull the car over for that reason alone, and can check the glass with a handheld meter. Anything else the officer notices during the stop, such as an expired registration or a phone in the driver’s hand, can lead to other tickets.

What a Tint Ticket Costs

Driving with illegal tint is a class B traffic infraction. The penalty schedule in C.R.S. § 42-4-1701 sets the fine for a § 42-4-227 violation at $50, plus a $16 surcharge. The same statute bars the Department of Revenue from assessing license points for class B traffic infractions, so a tint ticket by itself will not add points to your record.

Shops That Install Illegal Film

The installer faces its own penalty. A person who tints a windshield or window below the legal limits commits a class A traffic infraction. If a shop talked you into film darker than the law permits, keep the invoice, because it shows exactly what went on the glass and when.

A ticket is easy to pay and forget. What the officer wrote down about the glass, though, can matter a great deal if that same car is later part of a crash, which is where Boesen Law comes in.

The Bigger Issue: Seeing and Being Seen

Tint limits are not about looks. They exist because drivers depend on seeing out of their own car and seeing into everyone else’s. Dark film cuts the light reaching your eyes, and the loss matters most when light is already scarce: after sunset, in a snowstorm, in a parking garage, or under a low winter sun on the drive home.

It also removes a signal people rely on without thinking about it. A person in a crosswalk looks for the driver’s eyes before stepping off the curb. A cyclist watches for a head turning before trusting that a car will wait. Behind heavy tint, none of that is visible, and a pedestrian accident can follow from a guess about whether the driver saw anyone at all.

The situations where limited visibility shows up most often in crash files are these:

1. Night turns across traffic. A driver waiting to turn left has to judge the speed and distance of oncoming cars through the side glass and windshield, and dark film makes that judgment harder.
2. Backing out of spaces. Dark rear glass narrows the view of children, shopping carts, and people walking behind the car.
3. Right turns on red. The driver looks left for a gap in traffic and may miss someone crossing from the right.
4. Merging and lane changes. Mirrors help, but a quick shoulder check through dark rear side glass shows much less.
5. Four-way stops. Drivers often settle who goes first with a nod or a wave, and neither can be seen through dark glass.

None of this means every tinted car is at fault in a collision. It means the glass becomes one more fact to examine, and who is at fault after a left turn or any other intersection crash can turn on facts like that.

How Tint Can Affect Fault After a Crash

Breaking a tint law does not automatically make someone liable for a crash. The dark glass has to have played a part in causing it. When it did, the tint becomes evidence, and it can cut in either direction.

When the Other Driver’s Windows Were Too Dark

If the driver who hit you had illegal tint, that fact helps show a lack of reasonable care, especially when the crash happened at night or involved a turn or a lane change. The key is capturing it before it disappears. Film can be stripped in an afternoon, and totaled cars often go to salvage auction quickly. Photos of the car at the scene, the officer’s notes, any tint citation, and a meter reading all help. So does a request that the vehicle be preserved before anyone touches it. An officer’s findings usually go into the crash report. If no officer came to the scene, you may need to file a police report yourself and describe the other car’s windows in it.

When Your Own Windows Were Too Dark

An insurer will use your tint against you if it can. Colorado follows modified comparative negligence under C.R.S. § 13-21-111: your compensation shrinks by the percentage of fault assigned to you, and if a jury puts half or more of the blame on you, you recover nothing. But the adjuster still has to connect the tint to the crash. If a driver ran a red light and hit your door at noon, the darkness of your rear window had nothing to do with it, and an argument that says otherwise should be challenged.

Either way, the tint question is one Boesen Law raises early, because it is far easier to prove or disprove with the car still in one piece.

Jason Carr on Tint Stops and Crash Scenes

Jason Carr, who began his career as a law enforcement officer in 2005, served 14 years as a commissioned officer in the U.S. Army Reserve Military Police Corps, and later worked as an insurance claims adjuster before becoming a lawyer, sees the issue from several sides:

“People worry about the tint ticket, and it is a small fine. What I watch for in a crash case is the glass itself. Officers are trained to notice dark film because they cannot see who is inside or what the driver is doing, and the same problem exists for anyone trying to make eye contact at an intersection. When I was reviewing claims as an adjuster, a driver’s own tint was one of the first things an insurer looked at to shift blame. So on our side, we photograph the windows, pull the citation and the officer’s notes, and ask whether the glass had anything to do with how the crash happened. Sometimes it helps our client and sometimes we have to answer it, but we never want to be surprised by it.”

The side-impact crashes that make visibility matter so much can cause lasting injuries, even at city speeds.

Two Intersection Crashes and What They Recovered

• $300,000. Our client was T-boned by a reckless driver running a red light and suffered a concussion, significant whiplash, and pain throughout the body.
• $250,000. A client T-boned at an intersection had whiplash, a possible concussion, and hip and back pain.

Every claim has its own facts, and you can review the firm’s other case results to see the range of crashes Boesen Law has handled.

Contact Boesen Law About a Crash Involving Tinted Windows

Whether the tint was on the car that hit you or on your own, the evidence about it fades fast. Boesen Law has recovered hundreds of millions of dollars for injured Coloradans, and we are a boutique firm with big results, which means your case gets attention from lawyers who know how these arguments play out. Contact Boesen Law to set up a free, in-person consultation. We take calls at any hour, our team speaks English, Spanish, and Russian, and our fee comes only from what we recover for you.

FAQs About Colorado Tint Laws

Can cops pull you over for tint in Colorado?

Yes. Tint darker than § 42-4-227 allows is a traffic infraction on its own, so an officer does not need another reason to stop the car. The officer may measure the glass with a meter and issue a ticket, which for a driver carries a $50 fine plus a $16 surcharge and no license points.

What is the darkest tint legal in Colorado?

For the side and rear windows, 27% light transmittance is the darkest you can go, measured through the film and glass together. The windshield must let in at least 70%, apart from a top strip no deeper than four inches. Rear windows can be darker than 27% only if the front side windows and the windshield let in at least 70%.

Is 20% or 35% tint darker?

20% is darker. The percentage is how much light passes through, so a 20% window lets in less light than a 35% window. In Colorado, 20% on the front side windows of a Colorado-registered car is below the 27% limit and is not legal.

Can I drive in Colorado with 20% tint from another state?

The 27% limit is written for vehicles registered in Colorado. House Bill 19-1067 would have set a 20% minimum for out-of-state vehicles, but it was postponed indefinitely in 2019. If you move here and register the vehicle in Colorado, the Colorado limits apply, and a tint shop can swap the film for a lighter one.

Is there a deadline to sue after a crash involving a tinted car?

For most injury claims arising from a car crash, Colorado allows three years from the date of the collision. Shorter notice deadlines apply when a government vehicle is involved. Colorado’s time limits on personal injury cases depend on who was involved and what kind of claim you bring, so check yours early, while the car and its windows can still be inspected.

Call (303) 999-9999 or complete a Free Case Evaluation form