About JoCo

JoCo — The Logic of Shapes and Colors

Everything around us can be reduced to shapes and colors.

Every image, every environment, every visual interface is built on these two fundamental dimensions.

JoCo (Join Colors) starts from this idea.

It is not a single game, but a visual logic system that defines how shapes and colors can combine, interact, and generate rules.

JoCo is not about learning arbitrary rules.

It is about understanding a logic.

Once understood, this logic can be applied across many formats:

cards, board games, grids, digital apps, competitive systems, and more complex structures.

The Logic of Colors

JoCo is based on the three primary colors:

Blue

Yellow

Red

From their combination, three secondary colors emerge:

Purple (blue + red)

Green (blue + yellow)

Orange (red + yellow)

The core rule of JoCo is simple:

A primary color always connects with the secondary color generated by the other two primaries.

So:

Yellow ↔️ Purple

Blue ↔️ Orange

Red ↔️ Green

These pairs can also be understood as complementary relationships, reinforcing visual and perceptual coherence.

At a symbolic level:

White represents the domain of primary colors

Black represents the domain of secondary colors

This creates a clear and structured distinction from the start.

The Logic of Shapes

Alongside colors, JoCo uses simple and universal geometric shapes:

Circle

Square

Triangle

Their relationship is cyclical and dynamic, not hierarchical:

The circle surrounds and overcomes the square

The square contains and limits the triangle

The triangle pierces the circle

This creates a closed and balanced system:

Circle beats Square

Square beats Triangle

Triangle beats Circle

An intuitive structure, easy to remember, yet capable of generating strategic depth. 

The Essence of JoCo

JoCo exists entirely at the intersection of shape and color.

Every move, every interaction, every game emerges from these relationships.

It is not a system based on exceptions, but on consistency.

It does not require endless additions to exist, because its structure is self-sufficient.

Once the logic is understood:

The player does not follow rules, the player thinks in JoCo.