Technically a colour clash is not a particular colour against another colour, its differing shades of colours that work less well together. For instance a bright, clear yellow will work well with a strong purple, but less well with a warm and muted purple as the tones will be different.
COLOURS you should NEVER WEAR TOGETHER! / FASHION HACKS
What is the friendliest color?
Yellow. Yellow symbolizes happiness and warmth in almost all cultures. It's the color that grabs users' attention more than any other color. McDonald's and IKEA both use yellow in their branding to give off the feeling of friendliness and positivity.
Scientists have revealed that wearing the colour red will make you more attractive to the opposite sex. Studies reveal that red is the most attractive colour to both men and women but, curiously, the two genders are attracted to the same colour for different reasons.
With this in mind, it just makes sense that color combinations — two, three, or more — can have even greater impact on the way a message is perceived, based on the hues a designer or artist chooses to combine. ... Sets of 3 colors that go great together
Mixing and matching your black and browns will create an elevated look and make working with these two colors so much easier. Instead of chocolate brown, try a cognac or camel. This always works with black in an effortless way. A full-on black outfit with a camel or cognac coat, classic.
Pantone 448 C is a colour in the Pantone colour system. Described as a "drab dark brown" and informally dubbed the "ugliest colour in the world", it was selected in 2012 as the colour for plain tobacco and cigarette packaging in Australia, after market researchers determined that it was the least attractive colour.
Overall, navy color pairings should be clear, crisp, and bright. Black-shaded hues like dusty purple, hunter green, and maroon share navy's intensity and are likely to fade when paired with the dark-blue hue.
What other colours can it be worn with and the ultimate style question is can you wear navy and black together? The answer is YES! It has long been considered a winning colour formula, dark navy and black and both from the same colour category (Winter), so sit tonal well together.
The underlying premise of the three colour rule is to not combine more than three colours in your outfit at any one time. The exception being black and white, which are technically not 'colours' but tones, and can be intermixed as a fourth colour in your outfit.
You can wear things that drape for a casual look combined with something tight to add a bit of sex appeal, or you can show off your legs with a sexy skirt while wearing a more modest top. Combine a short bottom, such as a mini shirt, with a turtleneck or long sleeved top.
Yellow is widely recognized as the happiest color in the world and comes with a scientific pedigree to back up this esteemed honor. Research has suggested two main reasons why yellow is considered the happiest color. Many studies have linked the psychological powers of yellow to the sun.