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Color Contrast Checker icon

Color Contrast Checker

Color Contrast Checker calculates contrast ratios and checks WCAG 2.0 AA/AAA compliance for foreground and background colors.

Users34Current public install base
Rating5.0Store average score
Reviews1Public review volume
Manifest versionV3Extension platform version
7-day growth-1Net users gained this week
7-day growth rate-2.86%Relative weekly velocity
Preview

Color Contrast Checker Media preview

3 assets
Trend

30-day user trend

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User Growth Over Time

33333435352026年6月12日2026年6月15日2026年6月17日Latest: 34
Rating trend

30-day rating change

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30-day rating change

Start
5.00
Latest
5.00
30-day rating change
0.00
4.904.955.005.055.102026年6月12日2026年6月15日2026年6月17日Latest: 5.00
2026年6月12日2026年6月17日
Growth overview

Daily, weekly, and monthly growth

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1-day growthFlat
00%
7-day growthDeclining
-1-2.86%
30-day growthGrowing
+1+3.03%
Technical snapshot

Version, languages, and crawl freshness

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Version1.0
ManifestV3
Size25.54KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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The Color Contrast Checker is an interactive, free, and ad-free online tool that assesses color contrast for digital accessibility. It adheres to the contrast criteria set by the Web Content Accessibility Guidelines (WCAG) at AA and AAA levels.

Digital accessibility requires sufficient contrast and appropriate font sizes to ensure optimal readability. This tool calculates contrast ratios and visualizes them with colors and fonts, making it easy to detect color combinations lacking contrast and adjusting these colors to find a suitable color palette.

• The contrast calculator requires two color inputs: foreground color and background color. Supported formats include HEX, RGB, and HSL.

• The calculator determines the contrast ratio and verifies its compliance with WCAG AA and AAA standards for normal and large text.

• Below this, a visual representation of the selected color combination and text size is provided.

Reviews

Recent review snapshot

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The Chrome Web Store shows 1 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★
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4★
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3★
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