Color is a great accent, not a gatekeeper
The W3C’s guidance for Success Criterion 1.4.1 is direct: color should not be the only visual means of distinguishing information. The reason is practical. People do not all see colors the same way, and information can disappear when it is encoded only in hue.
This does not mean a product should become gray. It means color can do what it does best—create hierarchy, mood, and emphasis—while another signal carries the rule that a player must not miss.
Research trail[1]
Symbols make the board clearer for everyone
Microsoft’s game accessibility overview recommends communicating information in more than one way, such as an image as well as text or a symbol as well as color. It also asks designers to consider whether a game remains playable with sound muted, on a black-and-white display, and after a long break.
Those are good questions for any puzzle, not only an accessibility checklist. A player who can confirm a match through shape is not doing extra work; they are getting a second route to the same understanding.
Research trail[2]
How OutBrick does it
OutBrick pairs brick colors with studs and glyphs. A circle, triangle, square, diamond, plus, star, bar, or hex can reinforce the identity of a brick or gate. The visual system stays playful because the signals are part of the toy language: little marks you can read with your eyes and your memory.
The app also keeps the option close to the game’s normal flow. Color-blind mode is a first-class setting, and the board remains understandable through more than one channel. We still need testing with players who have different access needs; documentation is not a substitute for feedback.
Accessibility is a quality signal
Inclusive design often improves the base experience because it forces a team to ask whether the game is communicating or merely decorating. That pressure leads to stronger contrast, clearer feedback, better options, and fewer moments where the player has to guess what the screen means.
For a puzzle, clarity is not a concession. It is the material the challenge is made from. If the player cannot reliably read the rule, they are solving the interface instead of solving the board.



