Electric blue as a colour concept emerged with electrification — the blue of electric sparks, neon lighting, and cathode ray tubes. It represents the colour of human-made light sources rather than natural light. The specific cyan-blue of early computer screens (especially monochrome CRT displays) made it a defining colour of early digital culture.

Energetic, technological, and slightly otherworldly. Electric blue has none of the calm of sky blue or the depth of navy — it pulses with artificial energy. Associated with technology, electricity, and the particular excitement of the digital world. In large quantities it can feel aggressive; as an accent it creates maximum visual energy.

Electric blue became culturally prominent through 1980s music and fashion — electric blue was the hair colour of punk and new wave, the suit colour of early electronic music performers. In contemporary culture, it is the defining colour of the cyberpunk aesthetic — the blue of rain-wet city streets reflected in neon signs. The morpho butterfly, whose wings produce electric blue through structural colour rather than pigment, has inspired nanotechnology research into structural colour for display screens.