Black, White, Grey,
Silver, Charcoal, Platinum, Chrome, Slate, Ash, Gunmetal, Metallic, etc.
Achromatic designs can lack impact and come across as unfisihed. They can appear dated, as though being born of a time where color was concidered a luxury. Their lack of color can make them feel uncertain and plain. They often have a hard time standing out in a marketplace full of vibrant, attention grabbing competition. They can also feel robotic and lack a relatable human touch.
Ochre, Beige, Sepia, Mocha, Tan, Khaki, Oak, Caramel, Taupe, Chocolate, Puce, Drab, Umber, Burnt Sienna, etc.
Overall, brown has shown to be the least loved color. It can be seen as ineffective, overly common or generic. Brown is also associated with dirt, mud and feces. Being a composite color, it shows influence of the primary color used to create it, whether red, orange or yellow. On its own, brown has little to no vibrancy, especially when lighter tones are used.
Salmon, Puce, Carnation, Coral, Fuschia, Hot Pink, Magenta, Rose, Amaranth, etc.
Due to its strong association with women, men can be repulsed by pink. Locker rooms and jail cells have been painted pink to calm their inhabitants and remove their edge. It can also be seen as a cheap and disingenuous way to attract feminine favor. Due to it being a tint of red, pink can seem like a weak substitute for red. Pink can also feel dated and in bad taste, like pink Cadillacs and lawn flamingos.