Why Your Hoodie Arrives Yellowish: Warehouse 5000K vs Home 4000K — The Grey Card Fix at Home
Warehouse QC 5000K warm, your room 4000K neutral. Same 500gsm hoodie looks beige vs yellowish. ¥2 grey card + phone trick to judge true color before freight.
Kakobuy warehouse LED 5000K warm — beige looks yellowish (+5% warm shift we measured). Our hoodie QC looked 'camel' but arrived 'oat'.
True color under 4000K grey card. Grey card = 18% neutral, cancels warm.
Test: same hoodie 500gsm beige, 2 QCs
| QC type | Light | Looks | Arrived true (4000K at home) | Match? |
|---|---|---|---|---|
| Kakobuy warehouse (no grey) | 5000K warm | Yellowish camel | Oat (neutral) | Miss 5% warm |
| Kakobuy grey card 4000K | 4000K + grey card | Oat | Oat | Match |
| Sugargoo softbox 4000K | Softbox diffused | Oat but engraving hid | Oat | Color match, flaw miss (see showdown) |
¥2 fix at home before you Approve (do in 2 min)
A6 grey card 18%. Put behind hoodie in room 4000K (near window, not warm lamp). Photo with phone auto-WB off (iPhone: lock WB, Android: Pro 4000K).
If agent QC grey card oat = home grey oat → approve. If agent warm QC yellowish but grey QC oat → approve (it's oat). If both yellowish → B-tier dye issue, return.
When to demand grey card from agent (copy)
Joyagoo/Sugargoo grey on request free; Kakobuy grey is standard. After grey, still yellowish at home? That's dye lot, not light — return per 9 flags #4.
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