Mithril
A balanced, industrial grey with neutral charm

Mithril is a mid-tone grey that sits firmly in neutral territory. Because it lacks strong saturation, it works best as a supporting background rather than a main focus. The hex code #878787 offers enough contrast against black text to keep interface designs readable and professional. Use it sparingly, as it can feel flat when covering large, empty spaces.
Questions about Mithril
What is the hex code for Mithril?
Mithril is #878787. In RGB that is rgb(135, 135, 135), in HSL hsl(0, 0%, 53%) and in CMYK 0%, 0%, 0%, 47%.
Is Mithril #878787 considered a warm or cool grey?
Mithril #878787 is a perfectly neutral grey because it contains equal parts red, green, and blue, meaning it lacks a specific warm or cool undertone. This makes it an incredibly versatile, non-distracting choice for UI elements that need to remain objective.
How should I use #878787 in a web interface?
Use #878787 primarily for secondary text, inactive borders, or subtle background dividers where you need distinction without high visual weight. Since it creates a soft contrast against white or charcoal text, it is ideal for maintaining readability in dense information layouts.
Is Mithril readable on white or black?
Mithril has a 3.59:1 contrast ratio on white and 5.84:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.