Colors
In the most raw sense, everything you see is just a color. Colors are a division of what is visible so to speak. A base color can have a light or darker version of it depending on what kind of light or angle it is shown in.
Color wheels show all visible colors. You can use it to see opposing colors like orange and blue.
Different colors will also have differing darkness(called values) like yellow is very light while purple is usually very dark.
Red, orange and yellow relate to earth. Green to plants, the middle ground. Blue, purple and pink to the sky.
All colors can be made up of the primary three, yellow, blue and red. Yellow and blue mixed forms green. Yellow and red makes orange. Blue and red makes purple.
Basic colors
Red - Red is an intense, semi-dark and strong color. Blood and chilli peppers are red.
Orange - Orange is a rich and satisfying color of a fairly mid tone. Orange fruit is orange.
Yellow - Yellow is a fairly midtone and bright color. Clay and lemons are yellow.
Green - Greens can range from dark to semi dark to semi light. Plants are very green, grass, herbs and leaves.
Blue - Blue is a heavenly color and the beginning of the upper world. It is very open and ranges from light to dark tones. The sky and water in certain light shades are blue.
Purple - Purple is the darkest color and is very internal and intense similar to red. The night sky, some flowers and vegetables are purple.
Pink - Pink is the sweetest and most delicate color. It is very relaxing and gentle. Flowers, pigs and rose quartz can be pink.