Compatibility Green Flags & Red Flags by Element

Compatibility is more than just Sun signs. It's about how two people's energies interact, support, or challenge each other. Here is a guide to elemental interactions.

Harmonious Matches (Trines & Sextiles)

These elements tend to "get" each other without much effort.

Fire + Air

• Green flag: Shared momentum, curiosity, and a love for growth. Air feeds Fire's inspiration.
• Red flag: Burnout from too much activity or lack of grounding.

Earth + Water

• Green flag: Emotional safety, consistency, and nurturing. Water softens Earth; Earth holds Water.
• Red flag: Becoming too stagnant or codependent.

Same-Element Matches (e.g., Fire + Fire)

• Green flag: You speak the same language instantly.
• Red flag: Blind spots amplify. (e.g., Two earth signs might get stuck in a rut; two water signs might drown in emotion).

Dynamic Matches (Squares & Oppositions)

These matches often create sparks and intense attraction but require more conscious effort to sustain.

Fire + Water

• The Dynamic: Steam. High emotion meets high action.
• Green flag: Tremendous passion and depth.
• Red flag: Fire can scorch Water; Water can extinguish Fire's enthusiasm.

Earth + Air

• The Dynamic: Dust. Logic meets practicality.
• Green flag: Building tangible ideas. Air plans it; Earth builds it.
• Red flag: Earth finds Air too flighty; Air finds Earth too slow/boring.

Beyond the Sun Sign

If your sun signs aren't a "classic" match, don't panic. Check these other placements:

• Moon Signs: Determine emotional safety and daily living compatibility.
• Mercury Signs: Determine how you communicate and solve problems.
• Venus Signs: Determine your love language, values, and aesthetic tastes.
• Mars Signs: Determine sexual chemistry and how you handle conflict.

Golden Rule: Any two signs can work if both people are self-aware and willing to communicate.