How many questions are in this quiz?

This quiz has 119 questions on color choices, contrast, and accessible chart design.

What format are the questions in?

Each question is multiple-choice with 4 options, and there is no timer.

Is the difficulty beginner-friendly?

It’s mixed difficulty, combining fundamentals with real-world scenarios and tricky edge cases.

What skills will I improve by taking this quiz?

You’ll practice picking appropriate palettes, avoiding misleading color scales, and designing for color-vision deficiencies.

Can I choose how long the quiz is?

Yes. You can select the question count and difficulty settings before you start.

Color & Accessibility in Charts Quiz

About this quiz

What you’ll practice

Color decisions can make a chart instantly readable—or quietly misleading. This quiz helps you build instincts for accessible palettes, contrast, and annotation choices that work for more people.

You’ll also sharpen your ability to spot when color is doing too much work (or the wrong kind of work), and how to add redundant cues like labels, patterns, or direct annotations.

Format and difficulty

Each question has 4 options and there’s no timer, so you can think through edge cases and trade-offs. Choose your preferred question count and difficulty before starting; “Mixed” blends easy wins with tougher judgment calls.

Difficulty is balanced by combining quick checks (terminology, basic contrast rules) with scenario questions (multiple series, categorical vs sequential palettes, and dashboard constraints).

Common pitfalls to avoid

Relying on red/green contrasts for categories without a backup cue
Using rainbow palettes that introduce false boundaries and uneven emphasis
Assuming “high saturation” automatically equals “high contrast”
Encoding too many categories with color alone, especially in small marks
Forgetting to test grayscale/print and dark-mode viewing conditions

Tips for better scores

When in doubt, prioritize legibility over style: choose perceptually uniform scales, keep category counts manageable, and add direct labels when comparisons matter. Think about the viewing context (projector, mobile, print) and whether your design still works if color is removed.