#151715 Hex Color
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This near-black grey provides a professional, grounded foundation for dark mode interfaces. Because it sits on the edge of visibility, white typography pops against it with high contrast for readability. The hex code #151715 serves best as a dominant background tone where you want depth without the harshness of pure black. Use it to anchor minimal layouts or moody branding palettes.
Questions about #151715
What is #151715 in RGB, HSL and CMYK?
In RGB, #151715 is rgb(21, 23, 21), in HSL hsl(120, 5%, 9%) and in CMYK 9%, 0%, 9%, 91%.
Why use #151715 instead of pure black for dark mode?
This shade feels more natural and less straining on the eyes than pure black, providing essential depth without the harsh, flat appearance that can overwhelm a design. The subtle warmth helps white typography remain readable while maintaining a premium, high-end interface aesthetic.
Is #151715 readable on white or black?
#151715 has a 18.02:1 contrast ratio on white and 1.16:1 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.