Logo & Brand Design

Professional color picker with HEX, RGB, and HSL conversion, WCAG contrast checking, and palette generation. Pick colors and copy CSS-ready values instantly.

Calculate whole-pixel image dimensions with a locked ratio or independent width and height, then compare scale and pixel area before exporting in an editor.

Generate scan-testable URL, email, phone, WiFi, or escaped vCard QR codes with UTF-8 capacity checks, color warnings, raster logos, PNG, and SVG.

Generate harmonious color palettes from a base color. Complementary, analogous, triadic, tetradic, monochromatic. CSS variables, Tailwind config, WCAG contrast.

Calculate total ROI and net gain or loss, then use CAGR for endpoint-only investments or money-weighted IRR for explicit year-end contributions.

Preview sRGB colors with adjustable color-vision models. Compare palettes and text pairs, check original contrast, and copy the simulated colors as CSV.

Allocate exactly 100% of monthly income, compare non-negative actual spending, expose fixed-dollar extras, and review transparent balances and planning ratios.

Convert an entered unit cost and markup-on-cost percentage into markup amount, selling price, and equivalent gross margin with visible steps.

Calculate gross profit and operating profit or loss from net revenue, cost of sales, and operating expenses for one consistent period.

Calculate one flat or progressive commission plan for an explicitly labeled sales period, including same-period base pay without automatic annualization.