Google Marketing Practice Test & Exam Prep

Relying on color alone to convey information can leave parts of your audience behind. Some people have color vision deficiencies and can’t distinguish certain hues, while others may view graphs in grayscale or at a glance miss subtle color differences. Colors alone also don’t communicate patterns, trends, or magnitudes as clearly as patterns, textures, or explicit labels do. By adding patterns, textures, labels, or clear legends alongside color, you ensure that the data remains understandable across abilities and viewing conditions. So this answer is best because it acknowledges that some individuals may need patterns in graphs to understand the data effectively, highlighting why color should not be the sole encoding. The other options overstate color’s universality or suggest relying exclusively on color, which reduces accessibility and interpretability.