#21242B Hex Color
Online color picker to view shades, tints, color codes, and complementary colors
#21242b is a desaturated, near-black shade with subtle cool undertones. This dusty blue-grey acts as a stable, professional anchor for dark mode UI interfaces or technical branding. Because it offers strong contrast against white text, it works well as a dominant background color. The hex code for this serious, muted tone is #21242b.
Questions about #21242b
What is #21242b in RGB, HSL and CMYK?
In RGB, #21242b is rgb(33, 36, 43), in HSL hsl(222, 13%, 15%) and in CMYK 23%, 16%, 0%, 83%.
Does #21242b work well as a primary background color?
Yes, #21242b is an excellent choice for a dominant background because its desaturated nature reduces eye strain compared to pure black. It provides a stable, professional anchor that makes white text highly readable while maintaining a premium, technical aesthetic.
What colors pair best with #21242b?
Because #21242b is a neutral, cool-leaning shade, it pairs beautifully with vibrant accent colors to create visual interest. Try using soft, desaturated sage for a subtle look, or add high-contrast pops of color to make interface elements stand out against the dark canvas.
Is #21242b readable on white or black?
#21242b has a 15.53:1 contrast ratio on white and 1.35:1 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.