Electric Blue (#7DF9FF) is a very light, highly saturated cyan hue. Electric blue is a bright cyan named after the colour of electric sparks.
In RGB it is made of 125 red, 249 green and 255 blue. Its HSL hue angle is 183° with 100% saturation and 75% lightness, while its perceptual OKLCH lightness is 91% with a chroma of 0.111. For print, a starting CMYK mix is 51% cyan, 2% magenta, 0% yellow and 0% black.
As a text color on white, Electric Blue has a contrast ratio of 1.25:1, which fails WCAG AA even for large text. On black it reaches 16.87:1 and passes AA for normal text. If you use Electric Blue as a background, put black (or very dark) text on it. The APCA lightness contrast is Lc 92 for black text and Lc -14 for white text.
Its perceptual complement is #FFD7D6, close to millennial pink. Colors that look most similar are aqua, aquamarine, powder blue. It looks fairly similar to people with red-green color blindness (ΔE 11), so its meaning mostly survives.