Color representation in Scratch

scratchtomv

Scratch supports the following color formats :

• Hexadecimal (ex: #FF2D55, 0xFF2D55)
• Decimal (ex: 16711680)

In scratch we’ll mainly use the decimal version as it’s faster to compute and takes fewer bytes in Scratch memory.

The pen color can be set with this block :

set pen color to (some color)

Or with the combination of these blocks (uses the HSVA model, and is slower) :

set pen (color v) to (50)
set pen (saturation v) to (50)
set pen (brightness v) to (50)
set pen (transparency v) to (50)