User Guide

Chapter 3: Objects And Attributes
HSL
PANTONE
To define colors in Canvas:
Use CMYK, RGB, and Grayscale color systems.
Colors displayed on a monitor can only approximate the appearance of printed colors. Be sure to
discuss color reproduction with your commercial printer and obtain accurate proofs for color
projects.
CMYK
The CMYK color system is used in four-color process printing. Define colors as mixtures of Cyan (C),
Magenta (M), Yellow (Y), and Black (K) printing inks; e.g., to create green, mix cyan and yellow.
The CMYK system is appropriate for illustrations that will be separated for commercial printing.
RGB
The RGB color system is used in computer monitors. Define colors as mixtures of Red (R), Green (G),
and Blue (B) light; e.g., to create purple, mix red and blue.
The RGB system is appropriate for graphics displayed on a monitor, such as presentations and Web
pages.
Avoid RGB colors in documents intended for commercial printing. Canvas will convert RGB
colors to CMYK colors if you output color separations.
Grayscale
The Grayscale model lets you define shades of gray. Grayscale colors are neutral when used with RGB
or CMYK colors. In RGB Color images, grayscale colors are equal amounts of red, green, and blue. In
image channels, Grayscale colors are pure gray. In vector objects, text, or CMYK Color images,
Grayscale colors are percentages of black. In color separations, Grayscale colors appear as
percentages of black.
HSL
The HSL models let you define RGB colors using Hue (H), Saturation (S), and Lightness (L) values.
This way of defining colors is familiar to artists. HSL models let you adjust saturation and lightness,
without changing a basic hue, such as red or green.
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