Accessible By Design - Speaker Deck

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Accessible by Design with Tim Knight

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Hi! I’m Tim Knight Director User Experience @ GravityFree Studios Organizer of the St. Petersburg Front-End Meetup www.iamtimknight.com

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“I’m not a lawyer and not the person you want interpreting the law for you, but I can tell you how to make better digital products.” Tim Knight The guy on the stage right now

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Looking at Today • The roles of the ADA, Section 508, and WCAG on modern accessibility design • Changing our view on accessibility • Technology won’t save poor design: designing CRiSP • Designing components to be individually accessible • Think outside the structure • Accessibility testing tools that I love • Things you should read

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The Legal Stuff

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We’re Not Going Into Detail on This

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“Federal procurement law requires that [Interactive transaction machines] purchased by the Federal government comply with standards issued by the Access Board under Section 508 of the Rehabilitation Act of 1973, as amended.” Section 707 of The American’s with Disability Act http://www.ada.gov/regs2010/2010ADAStandards/2010ADAstandards.htm#pgfId-1006537

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If your company receives federal funding, current court rulings are starting to set precedent that this could include you too. Don’t Get Too Excited

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WCAG • Perceivable - Information and user interface components must be presentable to users in ways they can perceive. • Operable - User interface components and navigation must be operable. • Understandable - Information and the operation of user interface must be understandable. • Robust - Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies. Web Content Accessibility Guidelines

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Changing Our View

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This is about creating products everyone can use.

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“We’re all just temporarily abled.” Cindy Li Freelance Designer, Previously with Yahoo!

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You wouldn’t make a website that wasn’t responsive would you?

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Designing CRiSP

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The visual presentation of text and images of text should have a contrast ratio of at least 4.5:1 Large-scale text and images of large-scale text should have a contrast ratio of at least 3:1 (14pt and bold or larger, or 18pt or larger) Contrast (AA)

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The visual presentation of text and images of text should have a contrast ratio of at least 7:1 Large-scale text and images of large-scale text should have a contrast ratio of at least 4.5:1 (14pt and bold or larger, or 18pt or larger) Contrast (AAA)

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Contrast (for Mac) https://usecontrast.com

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Contrast Analyser for Sketch https://github.com/getﬂourish/Sketch-Color-Contrast-Analyser

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Color Contrast Checker http://webaim.org/resources/contrastchecker/

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Alerting with blinking, shaking, or other techniques that “ﬂash” an item on the screen should not ﬂash that item more than 3 times per second to reduce the chance of seizures. Refresh Rate

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Make it clear to the user where they are, where they’ve been, and what their options are. State

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State

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State Pressing tab on BBC let’s you access accessibility features.

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Avoid extended cognitive load to decipher the meaning of abstract images or complicated text. Perception (Yes, there’s probably a simple way I could have said that)

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Accessible Components

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Buttons

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Links

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Cards

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Card: Alt Attributes

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Card: Embrace Your Focus Ring

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Icon Links Lists

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Icon Links Lists

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Forms

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One option…

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Buttons Menus & Toggling State

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Buttons Menus & Toggling State

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Tab Trapping

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Thinking outside the document structure

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Subtitle Workshop XE http://www.uruworks.net/

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Aegisub http://www.aegisub.org/

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YouTube https://www.youtube.com

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Using Subtitle with HTML5 Video

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Testing Tools I Love

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Chrome DevTools / Lighthouse

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Chrome DevTools / Lighthouse

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aXe https://www.deque.com/axe/

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pa11y https://github.com/pa11y/pa11y

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Learning More

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Accessibility for Everyone https://abookapart.com/products/accessibility-for-everyone

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A Web for Everyone https://rosenfeldmedia.com/books/a-web-for-everyone/

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Accessibility Handbook http://shop.oreilly.com/product/0636920024514.do

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Inclusive Components http://book.inclusive-components.design/

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The a11y Project https://a11yproject.com/

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Questions?

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thank you. Tim Knight iamtimknight.com Find this and other talks at https://speakerdeck.com/timknight