#3F13DD Hex Color
A vivid, electric indigo with cold energy
#3f13dd is a highly saturated, cold indigo that commands attention with its intense, electric undertone. Because it is so vivid, it works best as a sharp accent color rather than a large-scale background, where it can easily overwhelm the eye. Pair it with soft, muted grays to ground the intensity. White text is highly readable against this hex code, ensuring your typography stands out in dark-mode layouts.
Questions about #3f13dd
What is #3f13dd in RGB, HSL and CMYK?
In RGB, #3f13dd is rgb(63, 19, 221), in HSL hsl(253, 84%, 47%) and in CMYK 71%, 91%, 0%, 13%.
How should #3f13dd be used in web design?
Because #3f13dd is highly saturated, it functions best as a focused accent color rather than a primary background shade. Pair this intense indigo with soft, neutral grays to ground the visual weight and maintain comfortable readability.
Is #3f13dd readable on white or black?
#3f13dd has a 8.94:1 contrast ratio on white and 2.34:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.