This palette is a temperature scale, not two brand colours. So a seed does not get painted onto the page: it sets where the scale starts and ends. Each of the four stops keeps the lightness it was authored with and only its hue and saturation travel, which is what holds the ramp monotonic and makes a washed-out result impossible on a dark ground.
Generated scale
#1e4fd6L 0.49
#7b2ff7L 0.54
#ff4d2eL 0.67
#ffb020L 0.81
luminance climbs cool to hot / worst ink 5.02:1
Identity
The short form used alone. Left empty it follows the first word of the name.
Replaces the four-bar mark. https or a data:image URL.
Not on the ramp
Some colour on this site carries a condition rather than a company, so a rebrand does not reach it.
Availability green
Sits outside the temperature scale on purpose, so "available" can never read as "hot".
Busy and queued
The dispatch board's amber and red are states. Reseed the ramp and they hold.
Validation red
An invalid booking field stays red even when the hot end of the ramp is not.
Ramp semantics
Cool still means the fix, mid means diagnosis, hot means urgency and the call.
Demo apparatus
ROC 000000 stays a labelled placeholder, and the demo disclosures stay on the page.