Insights, tips, and tutorials about color theory, accessibility, and design
If you're designing or maintaining a website, you've probably heard about WCAG AA contrast testing — but what exactly is it, and why should you care? This post breaks down the essentials and shows you how to quickly ensure your site meets accessibility standards.
Read More →Color matters — especially when it comes to making your website accessible. But how can you be sure your text colors stand out enough against their backgrounds? The answer lies in WCAG AA contrast testing.
Read More →Choosing the right color scheme for your website can make or break your design. Learn how to build effective color palettes using HEX codes, with proven combinations and the 60-30-10 rule for professional results.
Read More →Understanding how to define and manipulate colors in CSS is foundational for front-end development. Learn when and how to use HEX, RGB, and HSL formats with clear examples and live previews.
Read More →Looking for the best free color picker tools online? Whether you're designing websites, tweaking UI themes, or just exploring color palettes, you need a reliable, fast, and accurate tool. We've curated a list of the top 10 color pickers for 2025.
Read More →Designing or coding and need to quickly see how a color looks from a HEX or RGB code? You don't need to open Figma, Photoshop, or any bulky software. Here's how to preview color codes instantly online — for free.
Read More →If you're designing or maintaining a website, you've probably heard about WCAG AA contrast testing — but what exactly is it, and why should you care? This post breaks down the essentials and shows you how to quickly ensure your site meets accessibility standards.
A WCAG AA contrast tester is a tool used to measure the contrast ratio between text and its background colors. This ratio determines how easily users, including those with visual impairments like color blindness or low vision, can read your content.
WCAG, or the Web Content Accessibility Guidelines, set by the World Wide Web Consortium (W3C), defines levels of accessibility compliance. The AA level requires a minimum contrast ratio of:
If your colors don't meet these thresholds, your website's text can become difficult or impossible to read for many users.
Ignoring contrast standards isn't just bad for accessibility — it can also hurt your site's credibility, SEO rankings, and user engagement. Here's why:
You might think testing color contrast means diving into complicated formulas or using bulky software. Fortunately, it doesn't have to.
Our free color previewer lets you enter your HEX, RGB, or HSL codes and instantly see if your colors meet the WCAG AA contrast ratio. It's fast, no-download, and shows live previews so you can make better design decisions on the spot.
👉 Try our WCAG AA Contrast Tester now
Web accessibility isn't optional anymore — it's a must. Using a WCAG AA contrast tester ensures your website communicates clearly and inclusively, benefiting users and your bottom line. Don't guess about your colors — test and optimize with our tool today.
Ready to test your website's accessibility?
Start WCAG Testing →Color matters — especially when it comes to making your website accessible. But how can you be sure your text colors stand out enough against their backgrounds? The answer lies in WCAG AA contrast testing.
WCAG stands for the Web Content Accessibility Guidelines, which set standards for how accessible web content should be. The AA level is a middle-ground standard that balances usability and design flexibility.
The contrast ratio is the difference in brightness between foreground (usually text) and background colors. For text to be readable by people with visual impairments, it needs to meet these minimums:
Anything lower risks making your site hard to read for many visitors.
You have a few options:
Skip the hassle and try our color previewer — it's an all-in-one tool where you paste your HEX, RGB, or HSL values and instantly get:
This helps you tweak your color palettes with confidence and keep your site accessible.
👉 Test your colors now with our WCAG AA Contrast Tester
Ensuring your website colors meet WCAG AA contrast requirements is straightforward with the right tools. Use our free WCAG AA contrast tester and live color previewer to test your designs instantly — no software, no guesswork.
Make accessibility a core part of your design workflow. Your users — and your site's performance — will thank you.
Ready to ensure your colors are accessible?
Test WCAG Compliance →Choosing the right color scheme for your website can make or break your design. Whether you're launching a personal blog, portfolio, SaaS product, or eCommerce store — your color palette impacts branding, readability, conversions, and user trust.
In this guide, we'll break down how to choose the perfect website color scheme using HEX codes, give you tested HEX color combinations, and show you how to preview your palette live — instantly.
A good color scheme isn't just "aesthetics" — it's strategic communication. It influences how users perceive your brand and how they feel when interacting with your content.
HEX codes are six-character codes used in web design to define exact colors. Each HEX code begins with a # followed by six alphanumeric characters (e.g., #1DA1F2).
| Color | HEX Code |
|---|---|
| White | #FFFFFF |
| Black | #000000 |
| Blue | #1E90FF |
| Light Gray | #F5F5F5 |
Why use HEX? They're universally supported in HTML and CSS, easy to copy-paste, and work seamlessly across all browsers and devices.
Ask yourself: Is your brand playful, elegant, bold, minimalist? Your color choices should reflect that.
A tried-and-true design ratio:
Example:
👉 Use our previewer to see how your palette looks live.
Make sure your text is readable on your background. Contrast = accessibility. Use dark text (#212121) on light backgrounds or vice versa.
Need help checking contrast? Use tools like WebAIM Contrast Checker or preview directly using our live tool.
Try these proven HEX color combos for websites:
| Use Case | HEX Palette |
|---|---|
| Tech Startup | #0F172A, #38BDF8, #F8FAFC |
| Feminine Blog | #FFE4E1, #FF69B4, #2F2F2F |
| Minimalist | #FFFFFF, #E5E7EB, #111827 |
| Bold/Youthful | #FF6F61, #FFCA3A, #1D3557 |
| Eco Brand | #EDF6F9, #83C5BE, #006D77 |
👉 Paste any of these into our tool to preview your live color scheme.
Before committing to a palette, you should see how it looks on actual UI elements — backgrounds, buttons, text, sections.
👉 Use our HEX Color Previewer now to test and fine-tune your website color scheme.
Here are some free tools that help you brainstorm, refine, and apply your color palette:
🧠 Pro Tip: Build your palette elsewhere, but always test it in context using a color previewer.
Choosing the right color scheme with HEX codes isn't about guesswork — it's about clarity, consistency, and communication. Whether you're a solo founder, agency, or creative, a solid color palette builds trust fast.
👉 Try our Free HEX Color Preview Tool to test your scheme before you publish.
Ready to build the perfect color scheme?
Start with ColorPreviewer →Whether you're just starting out with front-end development or refining your CSS skills, understanding how to define and manipulate colors in CSS is foundational. In this guide, we'll break down the three most common color formats — HEX, RGB, and HSL — with clear examples and a live preview tool so you can see how each behaves in real time.
If you write any HTML or CSS, you're going to deal with colors — and choosing the right format impacts:
Knowing when and how to use HEX, RGB, or HSL makes your CSS cleaner and your design workflow more efficient.
Format: #RRGGBB
Example: #FF5733
HEX (hexadecimal) uses a base-16 system to represent red, green, and blue values. Each pair of characters ranges from 00 to FF.
Try it: #1E90FF, #333333, #F0F0F0
👉 Use our live preview tool to see how each code behaves visually.
Format: rgb(r, g, b)
Example: rgb(255, 87, 51)
RGB expresses color as three integers between 0 and 255 — one for each channel.
Try it: rgb(30, 144, 255), rgb(51, 51, 51), rgb(240, 240, 240)
👉 Paste any RGB value into our previewer to see it in action.
Format: hsl(h, s%, l%)
Example: hsl(14, 100%, 60%)
HSL separates color components by:
Try it: hsl(210, 100%, 56%), hsl(0, 0%, 20%), hsl(0, 0%, 95%)
👉 See each HSL variation rendered instantly using our live preview.
| Format | Best For | Pros | Cons |
|---|---|---|---|
| HEX | Web + design handoffs | Compact, common, easy to copy | Harder to tweak dynamically |
| RGB | JavaScript, animations, CSS logic | Easy to modify programmatically | Verbose |
| HSL | Theming, palettes, UX design | Intuitive for humans | Not as commonly used in tools |
Try the following CSS snippets in real time:
/* HEX */
.button {
background-color: #FF6F61;
}
/* RGB */
.hero-text {
color: rgb(30, 144, 255);
}
/* HSL */
.section-bg {
background-color: hsl(210, 100%, 56%);
}
👉 Use our live preview tool to see how each code behaves visually — across light/dark modes, button backgrounds, text overlays, and more.
Need to convert between HEX, RGB, and HSL?
Don't just guess. Test every CSS color format instantly.
👉 Try our Free Live Color Preview Tool
Paste any HEX, RGB, or HSL value — see the result in real-time.
Ready to master CSS color codes?
Start with ColorPreviewer →Looking for the best free color picker tools online? Whether you're designing websites, tweaking UI themes, or just exploring color palettes, you need a reliable, fast, and accurate tool. We've curated a list of the top 10 color pickers for 2025 — no installs, no bloat, just pure functionality.
From live HEX and RGB previews to palette generators and accessibility testing, these tools are loved by designers, developers, and digital creators alike.
| Rank | Tool Name | Best For | Free? | Live Preview |
|---|---|---|---|---|
| 1 | ColorPreviewer | Real-time HEX/RGB color preview | ✅ | ✅ |
| 2 | Coolors | Color palette generation | ✅ | ✅ |
| 3 | Adobe Color | Advanced palette & harmony | ✅ | ✅ |
| 4 | Color Hunt | Curated palettes | ✅ | ❌ |
| 5 | HTML Color Codes | Code-focused previews | ✅ | ✅ |
Looking for the fastest way to test any color code? ColorPreviewer gives you a real-time visual preview of HEX, RGB, and HSL values. No distractions. No account needed. Just input your code and see the color instantly.
Our tool gives you real-time previews with hex, rgb, and hsl support.
Coolors is a long-time favorite for generating and exporting color palettes. Just hit the spacebar to get a new palette, lock colors, adjust hues, and export to Figma or PDF.
From monochromatic to triadic, Adobe Color lets you generate palettes using color theory rules. It also includes accessibility tools for contrast checking and trending themes from Behance.
A minimalist site offering curated color combinations updated regularly by the community. Great for getting out of a creative block or finding aesthetic themes.
Geared toward developers, this site offers code snippets alongside the color preview. Good for quick hex-to-RGB conversions and HTML/CSS usage.
Generate beautiful palettes from a single color. ColorSpace includes split-complementary options, gradients, and even web-safe color suggestions.
If you're working with gradients, Eggradients provides stylish gradient sets and tools for previewing linear gradients.
A fast way to preview and copy Google's Material Design color system. Copy HEX, RGB, or RGBA directly.
Not for beginners — but if you love playing with hues, tints, and complementary color logic, Paletton is an amazing sandbox.
Input any color code and get a massive breakdown: conversions, preview blocks, complementary colors, gradient suggestions, and more.
If you want:
Designers and developers love it for a reason.
👉 Try our Free HEX, RGB, and HSL Color Picker
Live preview. Instant copy. No login.
Ready to start using the best color picker tools?
Start with ColorPreviewer →Designing or coding and need to quickly see how a color looks from a HEX or RGB code? You don't need to open Figma, Photoshop, or any bulky software. Here's how to preview color codes instantly online — for free.
Whether you're a front-end developer, UI/UX designer, or just playing with color palettes, this quick guide will help you save time and work smarter.
When working with HEX (#FF5733), RGB (rgb(255, 87, 51)), or HSL (hsl(14, 100%, 60%)) color formats, visualizing them quickly is critical. You want to:
But most tools require installing something or booting up slow apps. That's where online color preview tools and color pickers shine.
Just paste your color code — HEX or RGB — and get a real-time visual preview.
👉 Try our free color previewer now and see your colors come to life instantly.
Here's a quick breakdown if you're new to these color codes:
| Format | Example | Use Case |
|---|---|---|
| HEX | #FF5733 | Web, CSS, HTML |
| RGB | rgb(255,87,51) | JavaScript, Web |
| HSL | hsl(14,100%,60%) | Advanced CSS color tuning |
Both HEX and RGB define the same colors but in different syntaxes. RGB is easier to tweak dynamically in code, while HEX is more common in CSS files.
Want to test both? Paste either into our tool — it functions as both a color previewer and color picker.
Here are common scenarios where a live color previewer or picker is a lifesaver:
That's it — no signup, no fluff, just pure utility.
If you're a designer or dev, save the tool in your bookmarks or add it as a Chrome shortcut. You'll never have to open heavy software just to check #333333 again.
Why wait?
👉 Try our Free HEX & RGB Color Previewer
Input your code, preview instantly, and get back to designing.
No friction. Just fast, focused previews.
Most online color pickers:
Our color preview tool is:
Ready to start previewing colors instantly?
Try Color Previewer Now →We're working on more in-depth articles about color theory, accessibility, and design best practices.
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