DA0-002 Color Vision Deficiency (CVD) Practice Question
A dashboard designer needs to ensure that color choices are accessible to users with color vision deficiencies. Which practice should be followed?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Combine color with patterns or labels to convey information
Combining color with patterns or labels ensures that information is conveyed even to users with color vision deficiencies. Option A is incorrect as rainbow palettes rely solely on hue differentiation, which is problematic for color-blind users. Option B is incorrect because converting to grayscale loses the emphasis that color can provide for all users. Option C is incorrect because red-green color schemes are particularly difficult for those with red-green color blindness (the most common type).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a rainbow color palette to maximize differentiation
Why it's wrong here
Rainbow palettes can be confusing and are not accessible.
- ✗
Convert all charts to grayscale
Why it's wrong here
Grayscale may reduce clarity and impact for all users.
- ✗
Use red and green to indicate positive and negative values
Why it's wrong here
Red-green is the most common color blindness type; avoid this combination.
- ✓
Combine color with patterns or labels to convey information
Why this is correct
Using patterns or text alongside color ensures accessibility.
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