Colours of Lights

There are two main types:

• Primary Colours of Light
• Secondary Colours of Light

Primary colours of light

These are the fundamental colors that cannot be formed by mixing other colors. The human eye is most sensitive to these.

Primary Colours of Light:

• Red
• Green
• Blue

Secondary colours of light

These are colors formed by mixing two primary colors of light in equal intensity.

Secondary Colours of Light:

• Magenta = Red + Blue
• Yellow = Red + Green
• Cyan = Blue + Green

This is the process of combining light rays (primary colors) to produce secondary colors or white light. No light is lost in the process.

These are pairs of colors that produce white light when combined.

These are basic pigments (not light), which are used in painting or printing. When combined, they form secondary pigments.

Primary Pigments:

• Cyan
• Magenta
• Yellow

These are formed when two primary pigments are mixed together. Unlike light, some colors are absorbed or removed in this process.

This is the mixing of colored pigments, where some colors are removed or absorbed, and the remaining color appears.

Examples:

Example 1

Magenta + Cyan

• Magenta = Red + Blue
• Cyan = Blue + Green
• Common Color = Blue

→ Magenta + Cyan = Blue

Example 2

Magenta + Yellow

• Magenta = Red + Blue
• Yellow = Red + Green
• Common Color = Red

→ Magenta + Yellow = Red

Example 3

Cyan + Yellow

• Cyan = Blue + Green
• Yellow = Red + Green
• Common Color = Green

→ Cyan + Yellow = Green

Summary table: pigment mixing by subtraction