How to Use Trello List Colors to Organize Your Workflow
Trello boards can get visually overwhelming once you're managing more than a handful of lists.
List colors give you a way to add visual structure to your board, making it easier to scan, prioritize, and stay on top of what really matters.
Here's how to set them up, along with practical use cases to get the most out of them.
What are Trello list colors?
List colors let you assign a color to any list on your Trello board. There are 10 colors to choose from, and the color appears as the subtle background color on the list. It's a small visual change, but it makes a big difference when you're scanning a board with a lot of lists.
To set a list color, click the three dots (…) in the top-right corner of any list, then select a color from the menu. You can change or remove it at any time.
Color-code your support inbox by status
If you're using Trello as a shared inbox for customer support, list colors are a quick way to show the status of each stage at a glance. For example, you could assign red to your "Escalated" list, yellow to "Awaiting Reply," and green to "Resolved."
When new emails arrive as cards on your board, anyone on the team can immediately see where the bottlenecks are. It's especially useful when you need to triage quickly.
💡 TIP If you're managing customer emails in Trello, Email for Trello lets you receive and reply to emails directly from your board. Pair it with colored lists to build a shared inbox where your team can see email status at a glance.
Track your sales pipeline stages
A sales board in Trello typically has lists like "New Leads," "Contacted," "Proposal Sent," "Negotiation," and "Closed Won." Adding colors to these lists turns your pipeline into something more visual, almost like a heat map of where your deals stand.
You might use cooler colors (blue or purple) for early-stage lists and warmer colors (orange, red) for lists where deals need attention. Green works well for your "Closed Won" list as a visual reward for completed deals.
This kind of setup works especially well when you're sharing the board with a team. New members can read the board faster, and standups become easier when everyone can see the shape of the pipeline without clicking into individual cards.
You can even use automation to change list color based on the health of the deals in that status (if, for example, no meaningful action has been taken in a week).
Organize client onboarding phases
Client onboarding often involves moving through clear phases: intake, setup, training, and go-live. Assigning a different color to each phase makes it obvious where every client sits in the process.
This is particularly helpful when you're onboarding multiple clients at once across the same board. Instead of reading every list title, you can use color to orient yourself. A quick scan tells you how many clients are in setup versus how many are live.
If your onboarding process includes email communication (welcome emails, document requests, check-in messages), keeping those conversations attached to the right cards means nothing gets lost as clients move through each phase. For teams that handle onboarding emails in Trello, a post on simplifying client onboarding with email in Trello walks through how to set this up.
Use Butler to automate list colors
Here's where things get interesting. You don't have to set list colors manually. Trello's built-in automation tool, Butler, can change list colors based on triggers.
For example, you could create a rule that says: when a card with the red "Urgent" label is added to any list, change the list color to red. That way, if something urgent lands on your board, the list itself becomes a visual alert.
A few ideas for automated list color rules:
You could set your "Done" or "Resolved" list to turn green when a card is moved there, giving your team a visual confirmation that work is complete.
If you're running a support board, you could have a list turn red when it contains a card with a high-priority label, then reset to its default color when that card is moved out.
To set this up, click the three dots on any list, go to the Automation section, and build your rule from there.
You’ll find the action to change a list color in the Add/Remove action menu. You can also create rules from the Butler menu at the top of your board, where you'll have access to the full range of triggers and actions.
If you're new to Butler, the beginner's guide to Trello automation rules covers the basics of setting up triggers and actions.
💡 TIP You can combine Butler's list color automation with email automation in Email for Trello to build workflows where incoming emails trigger both a color change and an automatic reply.
Pair list colors with other visual features
List colors work well on their own, but they're even more useful alongside Trello's other visual tools. Card covers, labels, and Custom Fields all add layers of information that help your team read the board faster.
For instance, you might use list colors to represent stages in your workflow and card labels to represent categories or priority levels. The two systems complement each other without overlapping.
If you haven't explored collapsible lists yet, they pair nicely with colors too. You can collapse lists you don't need to see right now while keeping the colored headers visible, so you still know what's there without the visual clutter. We covered both features in a previous post on organizing with color and collapsible lists in Trello.
A small change with a big payoff
List colors take about 10 seconds to set up, but they can make your board noticeably easier to work with. Whether you're managing a support queue, tracking a sales pipeline, or running client onboarding, a bit of color goes a long way toward keeping your team aligned and your workflow clear.
