Pull color references from the image conversation
Give a shared brand image a useful next step: extract its palette and make color exploration quicker for the team.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
IMGIX_PALETTE
Tool to extract a color palette from an image in CSS or JSON form. Use when you need to analyze an image's dominant colors after any transformations.
Why this helps
Manually sampling colors adds busywork and scatters useful visual references across tools.
- Avoid manually sampling colors from every reference.
- Keep color exploration close to the source image.
- Make creative handoffs faster and more consistent.
Setup
Build it in a few focused steps.
- 1Connect Slack and Imgix to Notis once.
- 2Create an automation through the portal or ask Notis in plain language.
- 3Describe which brand reference images should have palettes extracted and the output format you want.
- 4Select the Slack channel-message trigger, choose the run-report channel, and test with one real reference image.
Questions about this workflow
Can palette extraction be limited to brand references?
Describe the brand-reference context in the prompt and use the relevant Slack message trigger.
Can I request a particular palette format?
Yes. State the preferred palette output in the instruction.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Imgix. A trigger fires from one place; an action lands in another.
Slack triggers
Imgix actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Imgix Auto Optimization
Tool to apply automatic best-effort image optimizations. Use when you need to compress, enhance, format, or remove redeye via Imgix's auto parameter.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Blend Overlay
Tool to overlay an image, text, or color onto a base image using imgix blending parameters. Use after specifying the base image URL and blend parameters to composite layers.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Imgix Blend Align
Tool to align the overlay relative to the base image when blending. Use after constructing a base Imgix URL to specify horizontal and vertical alignment (e.g., 'left,top').
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Blend Color Over Image
Tool to blend a solid color over an image using CSS keyword or hex. Use when you need to apply color overlay transformations to an existing image URL.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Imgix Blend X Position
Tool to position the overlay horizontally on an Imgix-rendered image. Use when you need to offset the blend layer by a specified number of pixels from the left edge.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Draw Image Border
Tool to draw a border around an image. Use when you need to overlay a border without resizing.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Adjust Image Brightness
Tool to adjust image brightness. Use when you need to modify an image's brightness level (−100 to 100) by supplying your source domain and asset path.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
IMGIX_CH
Tool to opt in to Client Hints. Use when you want Imgix URLs to adapt based on browser headers (Width, DPR, Save-Data).
Connect any two apps with Notis in the middle.
Slack and Imgix, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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