Color is a language tool
A mineral smell may be described as slate grey while citrus may feel yellow or orange.
CROSS-SENSORY
Smell & Color
People often use color to communicate smell even though odor itself has no visible color.
Associations are not universal
Color links can vary by culture, branding, memory and personal preference.
Why SmellBook includes it
Cross-sensory choices can make smell easier to compare and remember without pretending the association is scientifically fixed.
Color associations are labeled cultural or community-derived unless a specific verified claim is supported by evidence.