天天好运 · Good luck, every day
What should you wear
for good luck today?
Enter your birthday. Ancient Chinese Five Elements wisdom meets your zodiac sign — and tells you today's lucky colors, fabrics, and the one piece to wear.
Free · No sign-up · Your birthday never leaves your device except to create your reading
Questions, answered
What is Koi Daily?
Koi Daily is a free daily fortune reading that tells you what to wear for good luck. It blends the 2,000-year-old Chinese Five Elements system (Wu Xing) with Western astrology to generate your personal lucky colors, fabrics, and outfit pieces — refreshed every single day.
How does Koi Daily know my lucky outfit?
Your birth date reveals your personal element (your BaZi day master) among Wood, Fire, Earth, Metal, and Water. Each day also carries its own element. The relationship between the two determines which colors and materials strengthen your energy today — that relationship changes daily, so your lucky outfit does too.
Is Koi Daily free?
Yes. You get 5 free readings every day — enough for yourself and the people you love. Sharing your daily lucky card unlocks extra readings.
Do I need my exact birth time?
No — your birth date alone unlocks your full daily reading. If you do know your birth time, adding it makes your reading more precise.