Choose a design library
Four good options for the OfficeHQ web app. All four are in colour, have ready-made components (buttons, switches, tables, steppers, date pickers), and have page templates we can start from. Screenshots are the libraries' own demo pages. Tap a "Live demo" link to click around.
My recommendation
A. MUI (Material UI)
The most widely used React component library. Clean, familiar, blue by default and easy to rebrand to any colour.
- Free templates that match our screens: dashboard, sign-in, sign-up, checkout-style steppers.
- The most complete set of components: steppers for setup, switches, data tables, date pickers, snackbars for "Saved · Undo".
- Very strong accessibility and phone layouts.
- Huge community, so any developer can maintain it.
- Looks "Google-like" unless we adjust the theme (we would: our colours, rounder corners, our icons).
Cost: free. Advanced data grid and charts features are paid (MUI X Pro), and we do not need them.
Most modern look
B. HeroUI
Soft, rounded, friendly. Ships with 8 colour themes you can switch with one setting.
- The most polished look out of the box; feels like a consumer app.
- Good component set: tabs, switches, tables, date pickers, toasts.
- Works on web and phone apps (React Native), if we ever build one.
- The full page templates (Dashboard, Mail, CRM) are in the paid Pro plan.
- Smaller community than MUI.
Cost: components free. Pro templates paid (one-time licence).
Most ready-made pages
C. Tabler
A complete free admin template: hundreds of finished pages, including settings, sign-in, wizards and empty states.
- The most colourful of the four, with coloured icon tiles and charts.
- Finished pages for almost every screen we need, including a settings layout like ours.
- Free and open source.
- Built on Bootstrap, not React. We would use its styles and write our own React pieces, which is more work than A or B.
- Looks more like a classic admin panel.
Cost: free (Pro add-ons optional).
Best for forms and settings
D. Mantine
A full React library with 120+ components and a colour generator for any brand colour.
- The best form, date and settings components of the four; OfficeHQ is mostly settings.
- Built-in notifications, stepper, app layout (header + menu) and dark mode.
- Free, including its 100+ ready-made blocks.
- Its free blocks are building pieces, not full app templates, so we assemble the pages ourselves.
Cost: free.
Considered and left out: Ant Design Pro (very complete, but a dense enterprise look and Chinese-first templates), shadcn/ui (excellent, but black and white by default), Untitled UI (most of the app templates are paid).