Colorado Romeo and Juliet Law: Age of Consent, Close-in-Age Rules, and Penalties

1. Does Colorado Have a Romeo and Juliet Law?

Colorado does not use the 'Romeo and Juliet' label but has close-in-age exceptions baked into multiple statutes. Sexual assault under § 18-3-402(1)(e) applies when the victim is 15-16 and the actor is at least 10 years older — meaning a gap under 10 years is outside that subsection. Sexual assault on a child under § 18-3-405 applies when the victim is under 15 and the actor is at least 4 years older. Combined, the framework provides graduated protection: smaller gaps with older minors are not criminal, while larger gaps and younger minors face increasing exposure.

2. Age of Consent in Colorado

Colorado's age of consent is generally 17, but the structure varies. Victims 15-16 are protected against actors 10+ years older. Victims under 15 are protected against actors 4+ years older. Victims under 15 with no age-gap protection (e.g., when force is involved) face the most serious charges. Sexual contact with a victim under 15 by an actor 4+ years older is a felony with mandatory indeterminate sentencing.

3. Close-in-Age Exception Explained

Colorado's two-part structure: § 18-3-402(1)(e) creates sexual assault when the victim is 15-16 and the actor is 10+ years older — implying that gaps under 10 years with a 15-16 victim are not within the statute. § 18-3-405 creates sexual assault on a child when the victim is under 15 and the actor is 4+ years older — implying that gaps under 4 years with a victim under 15 are not within that statute. Both provisions are elements the prosecution must prove. There is no provision protecting conduct involving force, authority, or victims under 15 with a 4+ year gap.

4. Legal Age Gap Rules

Colorado's age-gap thresholds: victim 15-16, actor 10+ years older — § 18-3-402(1)(e) sexual assault (Class 4 felony); victim under 15, actor 4+ years older — § 18-3-405 sexual assault on a child (Class 4 felony); victim under 15, actor 4+ years older and pattern of abuse — § 18-3-405(2)(d) (Class 3 felony); victim 17, no statute applies absent aggravating factors.

5. What Is Not Protected?

Colorado's close-in-age structure does not reach:

• Actor 10+ years older than a victim 15-16 — § 18-3-402(1)(e) Class 4 felony with indeterminate sentencing
• Actor 4+ years older than a victim under 15 — § 18-3-405 Class 4 felony with indeterminate sentencing
• Position of trust over a victim under 18 — § 18-3-405.3 (separate, more serious statute)
• Conduct involving force, threats, drugs, or physical helplessness — § 18-3-402 sexual assault regardless of age
• Production, possession, or distribution of explicit images of anyone under 18 — § 18-6-403 sexual exploitation of a child

6. Examples

7. Possible Penalties

Colorado uses indeterminate sentencing for most sex offenses under the Sex Offender Lifetime Supervision Act, meaning a 'minimum' sentence is set but the defendant may remain incarcerated up to a maximum that includes life. This dramatically increases real-world exposure compared with the bare statutory minimums.

8. Sex Offender Registration Risk

Colorado's Sex Offender Registration Act (C.R.S. § 16-22-101 et seq.) requires registration for virtually all sex-offense convictions, with three duration tiers based on offense level and prior history. Senate Bill 22-099 (2022) created additional petition pathways for juveniles and reduced certain registration burdens. Most adult felony convictions trigger lifetime registration; misdemeanor convictions trigger 10-year registration. Removal petitions are available after 5, 10, or 20 years depending on the offense and tier.

9. Official Statute Sources

Primary Colorado statutes and official government resources cited in this guide:

• C.R.S. § 18-3-402 — Sexual assault
  Colo. Rev. Stat. § 18-3-402
  View official source
• C.R.S. § 18-3-405 — Sexual assault on a child
  Colo. Rev. Stat. § 18-3-405
  View official source
• C.R.S. § 16-22-101 et seq. — Sex Offender Registration Act
  Colo. Rev. Stat. § 16-22-101
  View official source
• Colorado Bureau of Investigation — Sex Offender Registry
  CBI Sex Offender Registry
  View official source

10. When to Talk to a Lawyer

Colorado's indeterminate sentencing under SOLSA means that a 2-year 'minimum' sentence can stretch to life depending on treatment-progress findings — a Colorado criminal-defense attorney is essential to challenge charging level, negotiate non-SOLSA dispositions when possible, and pursue post-conviction removal from the registry. Pre-charge consultation can also influence whether the case is filed under the close-in-age provisions or escalated.