How new synthetic paints expanded artists' colors

HostI was looking at some old paintings the other day and then I saw a bright poster from the nineteen sixties. The colors in the new one felt almost like they were plugged into a wall. They had this glow that you just don't see in stuff from a few hundred years ago. It made me wonder where all that extra brightness came from. Was it just that artists got bolder or did the tools they used actually change?

GuestIt was definitely the tools. For most of history, if you wanted to paint something blue, you had to find a blue rock, crush it up, and mix it with oil. If you wanted red, you might use dried bugs or a certain kind of clay. Your colors were literally tied to what you could dig out of the dirt or find in a field. But once we hit the nineteen hundreds, everything shifted. We stopped looking at the ground for color and started looking at the chemistry lab. Scientists found ways to build colors from scratch using coal tar and other chemicals. This gave artists a whole new set of toys that were way brighter and much cheaper than anything nature could offer.

HostSo before this, if a rock wasn't a certain shade of bright pink, you just didn't have bright pink paint?

GuestPretty much. Some colors were so rare they cost as much as gold. Take blue, for example. The best blue came from a stone called lapis lazuli that had to be brought all the way from mountains in Asia. Only the richest painters could use it. But in the early nineteen hundreds, chemists made things like Phthalo Blue. It's a long name, but it's basically a blue made in a lab that's incredibly strong. If you put a tiny drop of it into a bucket of white paint, the whole thing turns dark blue. It doesn't fade in the sun and it's cheap to make. Suddenly, a struggling artist could use the kind of deep, rich colors that used to be kept for royalty.

HostThat sounds great for the wallet, but does it change the art itself? I mean, if anyone can get any color, does it make the work feel a bit less special or maybe even look a bit fake?

GuestSome people thought so at first. There was a real worry that these lab colors looked too harsh or plastic. But for a lot of painters, it was like being able to see a new part of the rainbow. Think about the way a neon sign looks. You can't really make that color with a crushed up root. These new paints let artists match the look of the modern, industrial world. They could paint things that looked like cars, or advertisements, or bright plastic toys. It pushed them to move away from painting things that looked real and toward things that felt loud and high energy.

HostI guess that explains why some of those modern paintings feel so intense. But is it just about the shade of the color? Does the paint itself act differently when it's made in a lab?

GuestThat's a huge part of it. The biggest change came around the middle of the century with the birth of acrylic paint. Before that, most artists used oil paint. Oil is beautiful, but it takes forever to dry. You might have to wait weeks before you can add a new layer. Acrylic is basically liquid plastic. It dries in minutes. This changed the whole rhythm of how people worked. You didn't have to be patient anymore. You could throw paint at a canvas, let it dry, and do it again ten minutes later. It allowed for a much more messy, fast, and spontaneous style.

HostWait, if it's just plastic, does it still feel like real art? I can see someone saying that using plastic paint is just a shortcut. It feels a bit like it might lack the soul of the old stuff.

GuestWell, the artists who loved it would say the soul comes from the person, not the dirt they use for color. But you're right that it changed the texture. Oil paint has a certain depth because light can sink into it. Acrylic sits on top like a skin. But that skin is tough. It doesn't crack as easily as oil. It stays flexible. This meant artists could paint on huge rolls of raw cloth or even on the sides of buildings. They weren't stuck with small wooden boards or heavy frames anymore. The physical size of art grew because the paint was strong enough to handle it.

HostSo it was really a mix of three things. You get these new, super bright colors that nature didn't make. You get them for a price anyone can pay. And the paint itself dries fast and stays tough.

GuestExactly. And because it was cheap, artists started using it in ways they never would've risked with the old, expensive stuff. They could pour it, spray it with guns, or soak big sheets of cloth in it. Those huge, bright rooms you see in modern art museums, with giant splashes of color that cover the whole wall? Most of that only happened because the paint became a cheap, tough, lab made product. We live in a world of bright plastics and glowing screens now, and our art changed to match that because the chemistry allowed it to happen.

HostIt's wild to think that a chemist in a lab coat had just as much to do with those bright posters as the artist holding the brush.

GuestOur world is filled with these bold, lasting colors now because we figured out how to turn coal and oil into a rainbow that never fades.

HostThose old paintings might have the history, but the new ones have the voltage.

GuestOur world is filled with these bold, lasting colors now because we figured out how to turn coal and oil into a rainbow that never fades.

HostThe next time I see a bright red sign or a loud painting, I'll think of the rocks and bugs they left behind.