Hot Pink (#FF69B4) is a light, highly saturated magenta hue. Hot pink is energetic and playful, a staple of 80s and Y2K aesthetics.
In RGB it is made of 255 red, 105 green and 180 blue. Its HSL hue angle is 330° with 100% saturation and 71% lightness, while its perceptual OKLCH lightness is 73% with a chroma of 0.197. For print, a starting CMYK mix is 0% cyan, 59% magenta, 29% yellow and 0% black.
As a text color on white, Hot Pink has a contrast ratio of 2.65:1, which fails WCAG AA even for large text. On black it reaches 7.93:1 and passes AA for normal text. If you use Hot Pink as a background, put black (or very dark) text on it. The APCA lightness contrast is Lc 53 for black text and Lc -56 for white text.
Its perceptual complement is #00C39D, close to emerald. Colors that look most similar are orchid, blush, rose. People with red-green color blindness see hot pink quite differently (ΔE 20), so do not rely on it alone to signal meaning.