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High Contrast Mode

Apply high contrast themes to any website for better readability. Helpful for low vision, color blindness, and reducing eye strain.

After High Contrast Mode was enabled
Before High Contrast Mode was enabled

Make Text Stand Out

Some websites have poor contrast. Light gray text on white backgrounds. Thin fonts that disappear. It's hard to read even with good vision.

High contrast mode fixes that. Apply a theme that makes text bold and clear against its background.

Learn how to enable high contrast mode

  • Color Overlay - Apply a colored tint to make reading more comfortable and reduce eye strain.
  • Color Blindness Support - Make links and interactive elements easier to identify.
  • Grayscale Mode - Remove distracting colors while maintaining strong contrast.

Available Themes

Inverted colors: Swap dark and light. A normal light page becomes light text on a dark background.

Yellow on black: High visibility combination, popular for low vision users.

Grayscale: Remove color distractions while keeping contrast.

Inverted grayscale: Dark background with light gray text.

Increased contrast: Boost the existing contrast without changing colors dramatically.


Why High Contrast Helps

Low vision: When text is hard to see, high contrast makes it readable.

Color blindness: Removing or simplifying colors can make content clearer.

Eye strain: Strong contrast means your eyes don't have to work as hard to distinguish text from background.

Poor website design: Some sites just have bad contrast. High contrast mode overrides their choices with something readable.


Who Uses This

People with low vision who need strong contrast to read.

Users with color blindness who benefit from simplified color schemes.

Anyone reading in bright light where low-contrast text washes out.

Night readers who want a dark theme across all sites.


Is This Free?

Yes. High contrast mode is free in Helperbird.

Want the why, not the how? Read WCAG explained in plain English — what it is, where it came from, and who it helps, with a demo you can try.

More accessibility features

I have ADHD and yesterday Helperbird and the text-to-speech function (available in free version) turned a 28-page reading assignment from a two-day task to roughly two hours, maybe three at the absolute most. It helped tremendously! And I loved that the text-to-speech has such a fluid voice compared to a lot of others I've used! Honestly, the fact that this was created by someone who knows the struggles is something I love, because then it has neurodivergency in mind. I've tried too many things in the past that were created by neurotypical folk trying to be helpful to us and I do appreciate it, but it doesn't work as well because our brains work different. Highly recommend!

Addison Brown
Addison Brown
Helperbird user
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