Ruby (#E0115F) is a medium, highly saturated red hue. Ruby sits between red and pink, inspired by the gemstone, and shows up in jewellery and 40th anniversary themes.
In RGB it is made of 224 red, 17 green and 95 blue. Its HSL hue angle is 337° with 86% saturation and 47% lightness, while its perceptual OKLCH lightness is 58% with a chroma of 0.228. For print, a starting CMYK mix is 0% cyan, 92% magenta, 58% yellow and 12% black.
As a text color on white, Ruby has a contrast ratio of 4.76:1, which passes WCAG AA for normal text. On black it reaches 4.41:1 and passes AA only for large text. If you use Ruby as a background, put white text on it. The APCA lightness contrast is Lc 33 for black text and Lc -76 for white text.
Its perceptual complement is #008E88, close to teal. Colors that look most similar are raspberry, crimson, cherry red. People with red-green color blindness see ruby quite differently (ΔE 23), so do not rely on it alone to signal meaning.