Color palette for direct sunlight research [duplicate]

1. Is it okay to copy a color palette?
2. What is a DIAD color scheme?
3. How do you choose colors for categorical data?

Is it okay to copy a color palette?

Color schemes are totally ok to use. As a designer, I do that quite frequently; if I see a scheme that works great together, I may snapshot it and save it. It isn't necessarily looked-down upon.

What is a DIAD color scheme?

Diadic (Diad): Colors do not always conform to a structured relationship. A diadic color scheme uses two colors that are separated by one color on the color wheel. Similar to a square color scheme by equally skipping colors, the diadic color scheme is closer to analogous, minus the color in between.

How do you choose colors for categorical data?

Use warm colors & blue

That's because these warm colors and blue are super versatile for categories. Yellow and orange and red look very pleasing together, but people will still perceive them as different: ⬤⬤⬤ — which is exactly what we want for categorical colors. And blue is more flexible than any other hue.