YULATOOLS · Design tools

CSS, color and interface prototyping

Explore color conversion and palettes, CSS gradients, shadows, responsive measurements and interface helpers. They can accelerate an initial prototype; adapt generated values to your design tokens and confirm that target browsers support the properties you plan to use.

Color choice is more than visual harmony. Test text contrast, focus states, small screens and different user needs. A generator provides a starting point; inspect the finished component on real devices and in the browsers you support.

Match generated CSS and color values to your design tokens and accessibility rules. A palette alone does not prove adequate contrast; review normal text, large text and interactive states separately. Preview measurements and gradients on both narrow and wide screens before shipping. Make sure keyboard focus and error states remain understandable without relying on color alone. Recheck these decisions in the component’s actual layout and supported browsers, with realistic content.

Related categories: Image tools · Text tools

Selected tools in English

Color Contrast Checker: Test Text ReadabilityCalculate contrast between foreground and background colors. Interpret the ratio alongside text size and the relevant WCAG criterion. Color Palette Generator: Build a Palette from HEXExplore color options from a base color and copy HEX, RGB or HSL values. Check contrast and brand requirements before shipping a palette. Two-Color CSS Gradient GeneratorPreview two HEX colors and copy a 135-degree linear-gradient CSS rule. Check text contrast in the final design. HEX Color Shade GeneratorCreate lighter and darker HEX variants from a base color. Preview the swatches and check contrast separately before use. HEX to RGB and HSL Color ConverterConvert 3- or 6-digit HEX, rgb(r, g, b) and hsl(h, s%, l%) values. Copy equivalent codes and preview the color. Event Countdown Card GeneratorCreate a live countdown card from an event title and local date and time, then download a 600 × 350 PNG preview. CSS color-mix() GeneratorSet two HEX colors and a mix ratio to draft a CSS color-mix(in srgb, ...) declaration. Check browser support and contrast separately. CSS Line Clamp GeneratorChoose a maximum line count and draft CSS that clips overflow text in a compact card or list layout.

Browse the full category in Turkish