http://www.gizmodo.co.uk/2013/07/scientists-think-cavemen-painted-while-high-on-hallucinogenic-drugs/
Colors and how they got them:
These are things that every artist will use in their art pieces.
The six elements of art are line; shape; colour; texture; tone/form and space....
Lines: Lines can curve
Lines can be jagged
Lines can go in different direction
Lines can also be implied
Different lines make you feel different things. Take the above picture for example, how does it make you feel?
Calm? Relaxed?
That's because horizontal lines are calming.
-Diagonal lines create movement, they are the action lines
-Vertical lines are rigid
-Curved lines are girly and expressive
-Jagged lines are harsh and aggresive
Shape
Shapes are- geometric/biomorphic or organic
- open or closed
- 2D
Space
One of the most common ways to create space is perspective
-overlapping
-relative
-atmostpheric
-light
-vertical placement
-linear
Colour
-Primary : red, yellor, blue
-Secondary: purple, orange, green
-Complementary: colours oposite on the colour wheel
-Analogous: neighbouring colours on the colour wheel
Texture
-how something feels
-implied in paintings using different methods to try and make you imagine how it feels
And last, but in no way least (important) is:
Tone/Form
-this is when you become a magician so to speak, this is what you use to make objects on a 2D page look 3D.
So, what is the one thing that all artists have in common, you ask.
The use of these 6 elements of art, to make their piece, for lack of better word, magical.