WCAG Deck 2 Flashcards
What is the role of the Ambient Light Sensor in web accessibility?
It detects ambient light levels, enabling web pages to adjust text luminance for improved accessibility.
Why is luminance contrast essential for color-blind users?
It helps distinguish between light and dark areas, improving readability without relying on color.
How does the sRGB color space aid in web accessibility?
It is the most widely used color space, ensuring consistent color representation across devices.
What is local adaptation in color perception?
It refers to how the same color is perceived differently based on its surrounding colors and context.
What is the difference between saturation and brightness in color?
Saturation measures color intensity, while brightness refers to the amount of white or black mixed with the color.
How does the WCAG define ‘large text’ for contrast requirements?
Large text is 18pt or larger for normal weight and 14pt for bold text.
What is the impact of font size on readability and contrast?
Larger fonts require less contrast to remain legible, while smaller fonts need higher contrast.
What does HSL stand for in color representation?
Hue, Saturation, and Lightness.
Why is blue a challenging color for accessibility?
Blue has low luminance, fewer cones in the eye are sensitive to it, and it is processed differently, making it harder to see.
What are the risks of saturated red colors in web design?
They can trigger seizures in photosensitive individuals and cause strong visual and cognitive effects.
