Color blindness
Color blindness is a visual condition involving reduced or altered ability to perceive or distinguish certain colors.
Everyday Data Visualization
A condition involving reduced or altered ability to perceive or distinguish certain colors, commonly called color blindness.
- How it is used
- Guides inclusive color choices for data visualizations so color categories and values remain distinguishable.
- How deep it goes
- Defines cone-based deficiency types and translates them into palette, lightness, contrast, and spatial-separation guidance.
- Examples
- Uses traffic-light heatmaps, deficiency simulations, orange–gray–blue alternatives, and grayscale-friendly sequential gradients.
- What you can do after
- Apply it by choosing palettes with separable lightness, contrast, and non-color cues for viewers with color vision deficiencies.
Read how Everyday Data Visualization explains color blindness →
D3.js in Action, Third Edition
Color blindness is a visual condition involving reduced ability to distinguish certain colors or their brightness differences.
- How it is used
- Improves categorical chart accessibility by preventing color from carrying information alone.
- How deep it goes
- Explains perception challenges, contrast checks, SVG pattern construction, mark updates, and legend application.
- Examples
- Uses a cetacean conservation scatterplot with status-specific lines, dots, stars, and other SVG patterns.
- What you can do after
- Build it from scratch with D3 and SVG by testing contrast and adding patterned encodings to marks and legends.
Read how D3.js in Action, Third Edition explains color blindness →
Related concepts
- color palettecontrasts with · A selected set of colors intended for coordinated use in visual design or representation.
- double-encodingaddressed by · Double-encoding is the technique of representing the same information through two distinct visual or semantic channels so that one channel can compensate for limitations in another.
These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.