#191818 is the sRGB color rgb(25, 24, 24), or hsl(0, 2%, 10%) in HSL. The Color Explorer also converts #191818 to HSV, CMYK, LAB and OKLCH, and finds the nearest RAL Classic color.
Tints, shades and tones of #191818
Tints mix #191818 toward white for lighter variants, shades mix it toward black for darker ones, and tones mix in grey to soften it. Together they give you a ready ramp of #191818 for backgrounds, borders, hover states and text.
Color harmonies from #191818
Build a scheme around #191818 with its complementary, split-complementary, triadic, tetradic, analogous and monochromatic partners. Analogous colors sit beside #191818 on the wheel for a calm, cohesive palette; the complementary color sits opposite for high-contrast accents.
Contrast and accessibility
#191818 pairs best with light text and light UI. The tool reports the WCAG 2 contrast ratio and the APCA (WCAG 3) Lc against white and black, and simulates how #191818 reads for protanopia, deuteranopia, tritanopia and achromatopsia, so you can check #191818 is accessible before you ship it.
