Pool Ball Colors and Their Numbers Explained

The Standard 16-Ball Pool Set

Every standard American pool set has sixteen balls, one white cue ball and fifteen numbered object balls. The numbered balls split into two groups of seven, with the 8-ball sitting alone in the middle. Solids are balls 1 through 7, each a single color. Stripes are balls 9 through 15, each wrapped with a colored band over a white background. The 8-ball is solid black and plays by its own rules.

What confuses a lot of new players is that the colors aren't random. Each number has a specific color assigned to it, and that color is the same on the stripe version as on the solid version. The 1-ball and the 9-ball are both yellow. The 2 and the 10 are both blue. Once you see the pattern, number plus seven equals the stripe version, same color, the whole set makes sense.

The Solids, Balls 1 Through 7

Here's the full list of solid colors. The 1-ball is yellow. The 2-ball is blue. The 3-ball is red. The 4-ball is purple. The 5-ball is orange. The 6-ball is green. The 7-ball is brown, though some sets render it as dark maroon or burgundy depending on the manufacturer.

Aramith, which makes most of the world's quality pool balls, uses a slightly richer palette than cheap recreational sets. Their 4-ball is a deep aubergine rather than a pinkish-purple, and their 7-ball leans brown rather than maroon. If you've only ever played on bar-box balls with a cheap 7-ball that looks almost black, that's why you sometimes confuse it with the 8. A proper set makes the difference obvious.

The 8-Ball, Black and Special

The 8-ball is solid black with a white circle containing the number 8 on two sides. It's the only black ball in the set, and in 8-ball pool it's also the game-ending ball, you pocket it last, and only after clearing all seven of your group. Scratch on the 8 or pocket it out of turn and you lose the rack instantly.

Why black? The color sits between the solids and stripes visually, it contrasts with everything on the table, so you never lose sight of it. It also makes the 8 the psychological anchor of the game. Every 8-ball match is a buildup to that final shot, and the black ball carries a weight that matches the moment.

The Stripes, Balls 9 Through 15

The stripes follow the solids exactly, shifted by seven. The 9-ball is yellow-striped, the 10-ball is blue-striped, the 11-ball is red-striped, the 12-ball is purple-striped, the 13-ball is orange-striped, the 14-ball is green-striped, and the 15-ball is brown or maroon-striped.

The stripe band covers the middle third of the ball, with white poles at the top and bottom. That white area around the number makes the stripes slightly easier to identify in a cluster than solids, you can often see a flash of white even when most of the ball is blocked.

In 9-ball and 10-ball games, only the lower-numbered balls are in play, so you'll often see just balls 1 through 9 or 1 through 10 on the table. This is why the 9-ball gets its own spotlight as the money ball in 9-ball pool.

Why These Colors Were Chosen

The standard pool ball color scheme dates back to the early 20th century, when manufacturers settled on a palette that maximized contrast under the warm lights typical of old poolhalls. Yellow, blue, and red dominate because they're the three colors the human eye picks out fastest at distance. Purple, orange, green, and brown round out the set as distinct mid-range shades.

The eight-ball was originally black partly for tradition, early billiard balls were often dark ivory or ebony, and partly for visual clarity. It stands apart from everything else on the table at a glance. When billiard ball manufacturing shifted from ivory to phenolic resin in the 1920s and 30s, Aramith and other makers kept the traditional color assignments and they've been standard ever since.

How Snooker and Carom Differ

Snooker uses a completely different color system. Fifteen red balls worth one point each, plus six colored balls with specific point values, yellow (2), green (3), brown (4), blue (5), pink (6), and black (7). No stripes, no 8-ball, no numbers at all.

Carom billiards uses just three balls, one red and two white, or one yellow, one white, and one red depending on the set. No pockets on a carom table, so no numbers are needed. The color differences matter because each variant evolved separately, and the American pool scheme is only one of three major billiard traditions.