The red end of a pencil typically indicates the hardness of the graphite core. This system, known as the HB scale, classifies pencils based on their ability to leave a mark.
- H pencils are harder and produce lighter lines. They are often used for technical drawing and sketching.
- B pencils are softer and produce darker lines. They are popular for writing and shading.
- HB pencils are a medium hardness, striking a balance between lightness and darkness.
The color red often signifies an HB pencil – the most common type. This convention helps differentiate between pencils with varying graphite hardness, making it easier to choose the right one for the intended purpose.
For instance:
- Red: HB (medium hardness)
- Green: 2H (harder)
- Blue: 2B (softer)
However, it's important to note that not all pencils follow this color-coding system. Some manufacturers may use different colors for different hardness levels.
