Lemon (#FFF44F) is a very light, highly saturated yellow hue. Lemon is a fresh, slightly green yellow that feels clean and zesty.
In RGB it is made of 255 red, 244 green and 79 blue. Its HSL hue angle is 56° with 100% saturation and 65% lightness, while its perceptual OKLCH lightness is 95% with a chroma of 0.177. For print, a starting CMYK mix is 0% cyan, 4% magenta, 69% yellow and 0% black.
As a text color on white, Lemon has a contrast ratio of 1.15:1, which fails WCAG AA even for large text. On black it reaches 18.31:1 and passes AA for normal text. If you use Lemon as a background, put black (or very dark) text on it. The APCA lightness contrast is Lc 97 for black text and Lc -8 for white text.
Its perceptual complement is #ECECFF, close to lavender. Colors that look most similar are yellow, mustard, gold. It looks fairly similar to people with red-green color blindness (ΔE 1), so its meaning mostly survives.