#210421 Hex Color
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#210421 is a near-black magenta with heavy, dusty undertones that create a somber, mysterious mood. Because it is so dark, this shade functions best as a dominant base for moody UI backgrounds or high-contrast accenting. It supports white text exceptionally well, offering strong readability. The hex code for this dim, serious tone is #210421.
Questions about #210421
What is #210421 in RGB, HSL and CMYK?
In RGB, #210421 is rgb(33, 4, 33), in HSL hsl(300, 78%, 7%) and in CMYK 0%, 88%, 0%, 87%.
How does #210421 perform as a background color for UI design?
#210421 functions exceptionally well as a dark mode background because it offers a sophisticated alternative to pure black. Its subtle magenta undertone creates a softer, more premium feel while maintaining high readability for white or light-colored interface elements.
What colors pair well with #210421 for a balanced palette?
Is #210421 readable on white or black?
#210421 has a 19.02:1 contrast ratio on white and 1.10:1 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.