See Color for the decided part of this page.
Known issues
Divergences are where code and design intent disagree; open decisions are where nothing
has been decided yet. Neither is resolvable by inference.
Gaps in the current rules
overlay-default is malformed — rgba(21, / 36, / 62, / 0.3000) is not
valid CSS and browsers will drop the declaration. The dark value is well-formed.background-neutral and background-disabled are identical (#e7e9eb). Two names, one
value, different meanings — and one of seven such collisions, already recorded above.link-default and link-visited are identical (#1c53e9), so visited links cannot be
identified — another of the same collisions, already recorded above.border-width-md and border-width-emphasis are both 2px, so their recorded distinction
is invisible on screen — another of the same collisions, already recorded above.- No semantic focus token exists — already recorded above.
- The light-mode status contrast failures are untriaged. Whether they are known and
accepted or unnoticed is not recorded — already recorded above.
- Surfaces have no defined layering order. Titan ships four background tokens that
function as surfaces, with no defined order and no rule pairing a border to the surface
it sits on. The ordering on the main page is a proposal, not yet signed off — already
recorded above.
Constraints Titan should enforce
These are real, currently-true rules. Nothing in code stops a builder from violating them today — each is a placeholder for a guardrail Titan hasn’t built, not a decision still being made.
Last modified on September 17, 2026
