Believing that people should choose clothes to match their eye color or flowers to match the room color scheme does not necessarily indicate Obsessive-Compulsive Disorder (OCD) on its own.
OCD is a mental health condition characterized by intrusive, distressing, and unwanted thoughts (obsessions) and repetitive behaviors or mental acts (compulsions) that are performed to alleviate the anxiety caused by the obsessions. These obsessions and compulsions often significantly interfere with a person's daily life and cause considerable distress.
If someone has OCD, their thoughts and behaviors are typically excessive, irrational, and difficult to control. The obsessions and compulsions might center around themes such as contamination, symmetry, orderliness, or specific fears.
On the other hand, the beliefs you mentioned might simply be personal preferences or aesthetic choices rather than signs of OCD. Many people enjoy coordinating their outfits or interior decorations based on colors they like or think complement each other. These preferences are not uncommon and do not necessarily indicate any mental health condition.
It's essential to remember that diagnosing a mental health condition like OCD requires a proper evaluation by a qualified mental health professional. If you or someone you know is experiencing distressing and intrusive thoughts or engaging in repetitive behaviors that significantly impact daily life, it's best to seek professional help to get a proper assessment and appropriate support. Only a trained professional can provide an accurate diagnosis and appropriate treatment if needed.