IS MY MOD LEGAL?

Underglow in Kentucky

Conditional

Underglow is legal in Kentucky, including while driving, subject to color and flashing limits: Front-visible light must be white or amber, with no red to the front, no blue, and no flashing except turn signals and hazards.

Verified against primary sources · September 2026

What the law says

Kentucky does not ban underglow — it restricts colors and behavior. Front-visible light must be white or amber, with no red to the front, no blue, and no flashing except turn signals and hazards.

Specific Limits

Restrictions
Front-visible light must be white or amber, with no red to the front, no blue, and no flashing except turn signals and hazards.
While driving
allowed

Exceptions & Exemptions

Underglow may be used while driving. Lights visible from the front must be white or amber, red may not show to the front, blue may not be displayed at all, and flashing is limited to turn and hazard signals.

Statute

KRS 189.040, 189.950

Read the statute →

Frequently Asked Questions

Are underglow legal in Kentucky?
Underglow is legal in Kentucky, including while driving, subject to color and flashing limits: Front-visible light must be white or amber, with no red to the front, no blue, and no flashing except turn signals and hazards.
What are the exact underglow limits in Kentucky?
Restrictions: Front-visible light must be white or amber, with no red to the front, no blue, and no flashing except turn signals and hazards.. While driving: allowed. Source: KRS 189.040, 189.950.
Are there exceptions for underglow in Kentucky?
Underglow may be used while driving. Lights visible from the front must be white or amber, red may not show to the front, blue may not be displayed at all, and flashing is limited to turn and hazard signals.

Street-legal underglow picks

Gear that helps you mod without a ticket in Kentucky.

As an Amazon Associate, Is My Mod Legal earns from qualifying purchases made through these links, at no extra cost to you. We only recommend gear that helps you stay street-legal.

Check another modification