Color Accessibility Guidelines¶

Accessibility Standards¶

Compliance Requirements¶

graph TD
    A[Accessibility] --> B[Contrast Ratios]
    A --> C[Color Blindness]
    A --> D[Lighting Conditions]
    B --> B1[WCAG Standards]
    C --> C1[Alternative Cues]
    D --> D1[Visibility Tests]

WCAG Compliance¶

Color Vision Deficiency¶

Common Types¶

Alternative Design Elements¶

pie title "Design Element Distribution"
    "Color" : 25
    "Patterns" : 25
    "Text" : 25
    "Symbols" : 25

Contrast Requirements¶

Minimum Standards¶

Testing Tools¶

Implementation Guidelines¶

Design Principles¶

1. Never Rely on Color Alone
2. Use multiple cues
3. Include text labels
4. Add patterns/textures

5. Incorporate symbols

6. Text Visibility

      graph LR
          A[Text Visibility] --> B[Size 14pt+]
          A --> C[Bold Weight]
          A --> D[High Contrast]
          A --> E[Clear Fonts]

7. Emergency Signage | Element | Primary Indicator | Secondary Indicator | Tertiary Indicator | |---------|------------------|---------------------|-------------------| | Exit | Green Color | EXIT Text | Running Man Icon | | Fire | Red Color | Pattern | Flame Icon | | First Aid | White Cross | Red Background | Medical Icon |

Safe Color Combinations¶

Accessible Pairs¶

Pattern Enhancement¶

Environmental Considerations¶

Lighting Conditions¶

Material Selection¶

flowchart LR
    A[Material Choice] --> B[Indoor Use]
    A --> C[Outdoor Use]
    B --> B1[Standard Materials]
    C --> C1[Weather Resistant]

Testing Protocol¶

Accessibility Verification¶

Documentation Requirements¶

Record Keeping¶

• Contrast ratio calculations
• Color blind simulations
• Environmental tests
• User feedback
• Implementation photos

Resources¶

Tools & Guidelines¶

• Contrast calculators
• Color blind simulators
• Pattern libraries
• Symbol collections
• Testing checklists

Access Testing Tools → View Guidelines →