Definition
Chroma Blooks are visually distinct, animated, and the rarest pulls obtainable from the Market. Per-pack drop rates are typically 0.01% to 0.08%, with most Chromas hovering around 0.02%–0.05%.
Not every pack contains a Chroma — Medieval, Wonderland, and Bot do not. Safari, Space, Aquatic, Pirate, Outback, Bug, Lunch, and Ice Monster all do.
Per-pack drop rates
A few notable Chromas and their drop rates:
- Rainbow Panda (Safari) — 0.02% — the iconic chase, ~3,500 packs to 50%.
- Ice Slime (Ice Monster) — 0.08% — currently the most common Chroma in the game.
- Pirate Pufferfish (Pirate) — 0.03%.
- Teal Platypus (Outback) — 0.03%.
- Blue Butterfly (Bug) — 0.03%.
- Half a Sandwich (Lunch) — 0.04%.
- Ice Crab (Ice Monster) — 0.02% — rarest Chroma in the Ice Monster pack.
Best pack for Chroma odds
Per pack opened, the Ice Monster Pack has the best combined Chroma odds in the game — its three Chromas (Ice Slime, Frozen Fossil, Ice Crab) sum to 0.15% per pack, roughly 5× any other pack's Chroma rate. If you don't care which specific Chroma you pull, that's the best per-token rate.
If you want one specific Chroma, the math depends on its individual rate, not the pack's combined rate. A 0.02% Chroma takes ~3,500 packs to 50% no matter how many other Chromas share the pack.