# UI Color Palette - Quick demo with Aurélien Grimaud

> UI Color Palette is a cross-platform plugin that helps designers and developers create, manage, and deploy accessible color palettes that meet WCAG guidelines. Compatible with Figma, Penpot, Sketch, and Framer, it streamlines the entire color workflow from design to production, ensuring consistency and accessibility across your digital products. Book a 15-minute live demo.

- Host: Aurélien Grimaud
- Duration: 15 min
- Location: Google Meet
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/a-ng-d/ui-color-palette-quick-demo
- Event type id: 4663213

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4663213&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 4663213,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  }
}
```

- Required fields: `name` (Your name), `email` (What's your email?)
- Optional fields: none
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.