Are Coloring Apps Colorblind-Friendly? What to Check Before Downloading

A coloring app is, structurally, one of the most color-dependent activities a kid can do on a screen — which makes it one of the more revealing places a color vision difference actually shows up. If your child has been coloring the sky green or the grass brown and it’s never registered as unusual, it’s worth knowing that color blindness is common enough, and underdiagnosed enough, that a coloring app is sometimes where a parent first notices something worth asking a pediatrician about.

How Common This Actually Is

Global estimates put color vision deficiency at roughly 4–8% of boys and about 0.5% of girls — commonly summarized as affecting around 1 in 12 boys and 1 in 200 girls, with somewhat higher rates specifically reported among Caucasian boys in preschool-age screening studies. The bigger number worth sitting with: an estimated 80% of affected children go undetected, mostly because routine color vision screening isn’t standard in most early childhood care, and a young child has no real way to know their perception of color differs from anyone else’s — “purple” just means whatever they’ve always seen labeled “purple.”

Why This Matters Specifically for Coloring Apps

A coloring app’s entire interaction model runs through color selection — tap a swatch, fill a region, done. If that swatch grid is nothing but small colored dots with no other distinguishing information, a colorblind child is left guessing at colors that look similar or identical to them, in an activity that’s otherwise supposed to be simple and low-pressure. That’s a meaningfully worse experience than the same gap in an app where color is decorative rather than the entire mechanic.

What to Actually Check Before Downloading

• Text labels on color swatches. This is the single most useful thing to look for. A swatch labeled “Sky Blue” or “Jade Dip” — rather than just an unlabeled colored circle — means a child can pick the right color by reading or having it read to them, independent of how it actually looks to their eyes. In our own hands-on testing, we’ve noted this as a genuine design positive when we see it — Butter Buddies Coloring Book, for instance, names its color fills (“Rainbow,” “Jade Dip,” “Chili Glaze”) rather than showing plain swatches, which happens to help here even though that wasn’t likely the developer’s primary intent.
• Patterns or icons alongside color, not color alone. The same accessibility principle used in charts and maps applies here — pairing a color with a distinguishing shape, texture, or icon means the information isn’t lost if the color itself is ambiguous.
• Reasonable contrast between adjacent swatch colors. Colorblind users typically rely more on brightness (luminosity) differences than hue differences to tell colors apart — a palette where every swatch is roughly the same brightness is harder to navigate regardless of labeling.
• Screenshots that show the actual color picker UI, not just finished, colored-in example pages — the App Store listing’s example artwork tells you nothing about whether the picker itself is usable.

Device-Level Options Worth Setting Up Regardless

Even a well-labeled app benefits from checking your device’s built-in accessibility tools, and a poorly-labeled one genuinely needs them:

• iOS: Settings → Accessibility → Display & Text Size → Color Filters, which offers grayscale and filters tuned for common types of color vision deficiency (protanopia, deuteranopia, tritanopia), with adjustable intensity.
• Android: Settings → Accessibility → Color Correction (available since Android Lollipop), which offers a similar set of filter modes, though generally with fewer options than iOS.

These adjust the whole device’s display, not just one app, so they’re worth setting up once if you know or suspect your child has a color vision difference — rather than a fix to look for on an app-by-app basis.

Our Take

We don’t currently score this as a standalone criterion in our BCA Score framework, but it’s a real gap worth flagging honestly rather than pretending it’s already covered — accessibility for colorblind kids specifically isn’t something most coloring app developers design for, and it shows in how many color pickers are just unlabeled dots. Text-labeled swatches are the one thing worth actively looking for in screenshots before downloading, and setting up your device’s color filters costs nothing and takes a couple of minutes if you have any reason to suspect it might help.

Sources: Color Blindness Statistics By Vision Deficiency (Market.us), Caucasian Boys Show Highest Prevalence of Colour Blindness Among Preschoolers (ESCRS), How to Make Your App Colorblind Friendly (Medium / AppSoGreat), our own hands-on testing notes from the Butter Buddies Coloring Book review