Color Tools
Updated June 2026 · 100% client-side — your data never leaves your browser.
Color sits at the intersection of design and code, and getting it right means juggling several formats at once — a HEX value in a style guide, an RGB triple in a canvas call, an HSL setting when you need to nudge lightness. This hub collects Bytewrench's color utilities so you can pick, convert, harmonize, and pressure-test color without leaving the browser or installing a design app.
Use the picker to sample and convert between HEX, RGB, and HSL; the palette generator to build complementary, triadic, and analogous schemes from a single base color; and the gradient generator to produce copy-paste CSS for linear and radial gradients. Each tool gives you code you can drop straight into a stylesheet.
Good color is also accessible color. The color-blindness simulator shows how your palette appears to users with protanopia, deuteranopia, and other forms of color-vision deficiency — a fast way to catch combinations that fail before they ship. Everything renders instantly and locally.
When to use these tools
- Converting a brand HEX color into the RGB or HSL value a library expects.
- Building a coordinated color scheme from one base color for a new UI.
- Generating ready-to-paste CSS for a linear or radial background gradient.
- Checking whether a UI's color choices remain distinguishable for color-blind users.
- Tweaking a color's lightness or saturation precisely using HSL controls.
Tools in this category
Quick conversions
Frequently asked questions
What's the difference between HEX, RGB, and HSL?
They're three ways to describe the same color. HEX (#3366ff) and RGB (51, 102, 255) both specify red, green, and blue channels — HEX is just the hexadecimal shorthand. HSL (hue, saturation, lightness) is more intuitive for humans: you can lighten or desaturate a color by changing one number without touching the others.
How do I make an accessible color palette?
Aim for sufficient contrast between text and background (WCAG recommends a 4.5:1 ratio for normal text), and never rely on color alone to convey meaning. Run your chosen colors through the color-blindness simulator to confirm important distinctions survive for users with color-vision deficiencies.
Can I copy the generated CSS directly?
Yes. The gradient and palette tools output ready-to-use CSS — gradient strings and color values you can paste straight into a stylesheet or design token file. No manual conversion required.
Do these color tools work offline?
Yes. All color math and rendering happens in your browser with no server calls, so the tools keep working even with no connection and never send your color choices anywhere.