Deep Navy sets the weight of the palette in trust and stability, and System Black is the swatch that breaks rank: a single indigo that stops the set reading as one note. System Black to Output White spans 91 points of lightness, so the palette can carry its own hierarchy without reaching for a second one. Signal Blue is the loudest thing in the set and it is still cool, so every accent the palette offers recedes rather than advances.
System Black a near-black indigo, depth, focus, the color of late-night thought.
Deep Navy is the most trusted color in color psychology: competence, stability, calm, used constantly by institutions that need to be believed.
Signal Blue is the most trusted color in color psychology: competence, stability, calm, used constantly by institutions that need to be believed.
Terminal Green an emerald or kelly green: vitality turned all the way up, confident and alive.
Output White reads as purity and openness, the color of empty space, clarity, and things left deliberately unresolved.
Technical documentation aesthetics with diagrams, specifications, and schematics
Explore the full Tech Spec style guideIts decade on the timeline · 2010s