ColorTools

Frequently Asked Questions

Answers to common questions about color theory, our palette generator, and CSS gradient tools.

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What is a complementary color scheme?

A complementary color scheme uses two colors that sit opposite each other on the color wheel, 180 degrees apart — for example, blue and orange, or red and green. This pairing creates the strongest possible contrast, making elements pop. It is widely used for call-to-action buttons, hero banners, and any design element that needs to stand out. For best results, use one color as the dominant shade and the other as an accent.

What is an analogous color scheme?

An analogous color scheme uses three to five colors that are adjacent on the color wheel, typically within a 30- to 60-degree spread. For example, blue, blue-green, and green form an analogous palette. These schemes create a harmonious, serene look with low contrast, making them ideal for backgrounds, gradients, and UI elements where you want a cohesive, professional appearance without jarring transitions.

What is a triadic color scheme?

A triadic color scheme uses three colors evenly spaced at 120-degree intervals around the color wheel — such as red, blue, and yellow, or orange, green, and violet. Triadic palettes offer vibrant contrast while maintaining balance, making them popular for branding, data visualizations, and playful web designs. The trick is to let one color dominate and use the other two as supporting accents.

How do I export these colors for CSS?

Each color swatch in our palette generator has individual copy buttons for hex, RGB, and HSL formats. Click the format you need and the value is copied to your clipboard. You can also click the 'Copy as CSS Variables' button to generate a :root block with custom properties (--color-1 through --color-5) ready to paste directly into your stylesheet. For the gradient generator, the CSS code block includes the complete background property you can use immediately.

What is the difference between hex, RGB, and HSL?

Hex (hexadecimal) is the most common web color format, using a 6-character code like #FF5733. RGB (Red, Green, Blue) specifies color as three integers from 0-255, such as rgb(255, 87, 51). HSL (Hue, Saturation, Lightness) describes color in terms of hue angle (0-360°), saturation percentage, and lightness percentage, making it more intuitive for adjusting shades and creating color harmonies. All three represent the same color space — HSL is simply the most human-friendly.

Are the generated palettes colorblind-friendly?

While our generator produces palettes based on standard color theory, we recommend checking your final design with a color-blindness simulator if accessibility is critical. Monochromatic and high-contrast analogous palettes tend to be safer for colorblind users. Complementary schemes with large hue differences (especially red-green) may be problematic. Use additional visual cues like icons, patterns, or text labels alongside color to ensure your design is accessible to everyone.

Can I use these colors in design tools like Figma or Photoshop?

Absolutely. Copy the hex codes from any palette and paste them directly into Figma, Adobe Photoshop, Sketch, Canva, or any other design tool that accepts hex color values. Most design tools recognize #-prefixed hex codes natively. You can also use the RGB values in tools that prefer decimal color input.

How do I make a gradient with more than two colors?

Our gradient generator supports any number of color stops — click the '+ Add Color' button to insert additional stops. You can reorder them manually, pick exact shades with the color pickers, and choose between linear gradients (with customizable direction or angle) and radial gradients. The CSS code updates in real time as you make changes.

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