The photo of your 'rainbow' rose is very pretty. I believe is one of many new hybrids in colors of the rose flower family. I like many colors for different reasons that is personal to me. Shades of 'blue' from dark to pastels. It reminds me of the first car in my first marriage, deep, satin, navy blue 1967 Mustang. Light pastel blue in my first wrap around skirt I wore when I worked my first job, one of my first jobs after graduation of highschool. Yellow, my first apartment kitchen, I had fun painting it, 'sunshine yellow'. Aqua green, for my first set of towels and bathroom accessories in my first apartment after I married my first husband. Colors can 'run' deep when memories are attached!