hex:: #ff0000
wavelength:: 620-750 nm
emotion:: anger
symbol:: fire · will · life-blood
the longest visible wavelength. highest energy in the warm spectrum
evolutionary signal: fire, blood, thermal injury, dominance display
properties
- highest arousal of any color — accelerates heart rate, increases blood pressure
- most visible at distance in natural environments
- the color of iron oxide — rust, soil, Mars
in nature
- warning coloration (aposematism): toxic frogs, venomous snakes, poisonous berries
- ripeness signal: fruits shift from green to red when ready for dispersal
- blood: the universal marker of injury and vitality
- fire: the oldest human tool and oldest human threat
in prysm
- danger, critical failure, system overload, resource depletion
- the stop signal — immediate attention required
one of the seven of color — the spectrum bent into cyberia's flag