Colour management. The colour on the screen is a suggestion. The colour in the lab dip is the decision.
Name the colour once
A colourway needs one name and one code that every supplier, every tech pack and every order uses. Two names for the same colour is how a season ends with two colours. The name should describe the colour rather than the season it appeared in — a colour outlives the drop it was introduced for.
Screen colour is not fabric colour
A hex value is a useful label and a poor specification. The same dye reads differently on a knit and on a woven, in daylight and under store lighting. The physical reference is what the supplier matches to; the screen value is what the team searches by.
Lab dips belong to the article
A dip is a decision about a specific colour on a specific material, and it is worth exactly as much as the record of who approved it and when. Kept in an inbox, it has to be relitigated every season. Kept on the article, next season starts from what this one settled.
Continuity across suppliers
When two factories make the same colour, the reference has to be the same physical standard, not two independent matches to a screen value. That is the difference between a range that looks like a range and one that looks like two.