LIVE · UTC
Throughput vs plan
Parcels/hour across the network · last 24h
Exception mix
Open, by type
Sort lines
12 lines · live status & utilisation
Control Tower - Design System
The patterns that keep a dense, live operations screen legible. Everything on the Operations tab is built from these rules.
01 · Data-density principles
Numbers are tabular, right-aligned, and monospace. Every rupee, count, rate and timestamp uses IBM Plex Mono with
tabular-nums, so columns scan vertically and digits never jump as values tick live.Status is never colour alone. Severity and state always pair a colour with an icon/dot and a text label, readable for colour-blind operators and in a glance across a wall display.
Progressive disclosure. The table shows the 20% you triage on; the drill-down panel holds the other 80% (full record, timeline, related events) so the grid stays scannable.
One accent, spent on action. Signal orange marks only the current action or the live/critical state. Teal carries filters and data accents. Everything else stays in the neutral navy ramp.
02 · Colour
App bg
#06111CSurface
#0B1B29Raised
#16334ASignal · action
#FF6A33Teal · data
#2FB6C2Green · healthy
#33C77BAmber · degraded
#F5B133Red · fault/breach
#F26A5DSemantic mapping is fixed: green = healthy / resolved, amber = degraded / at-risk, red = fault / SLA breach, orange = the one action needed now. Meanings never cross.
03 · Typography
Sortation network
18,420 pph
EX-1042 · LHR/SL-03 · -04:12
Exception detail and narrative text uses Inter for comfortable reading.
SLA REMAINING
04 · Density
Two row densities share one token pair (
--row-py, --row-fs). Comfortable for triage, compact to fit ~40% more rows on a control-room display. Toggle it live from the table toolbar or ⌘K → density.05 · Status & severity
Critical
High
Medium
Low
Open
Acknowledged
Resolved
-04:12 breached
02:40 at risk
18:05 ok
06 · Filtering model
Faceted, additive, reversible. Facets (facility, severity, type, status) combine with search and saved views. Every active filter shows as a removable chip with a live result count, and one click clears all, so the operator is never lost in a filter state they can't see.
07 · Charts
Grid lines at ~8% alpha on the Y-axis only. Series order fixed (teal → green → amber → violet). Tooltips use mono numerals. No 3D, no gradients heavier than 12% fill. A dashed line always means plan/target, solid means actual.
08 · Accessibility floor
Body text ≥ 4.5:1 on navy · 2px focus ring on every interactive · full keyboard path for the command palette and row actions · status carries icon + text, not colour alone ·
prefers-reduced-motion pauses live ticks and row animations.