Spare Volcano
Spare Volcano (#270A15) is a deep magenta with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (337°, 59%, 10%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary teal. For something softer, pull in its analogous neighbors on either side of the wheel.
Etymology
Old English spær, frugal, scant — used as a color modifier since the seventeenth century for hues that read as minimal and unornamented. Spare gray, spare white: very low saturation combined with optical restraint. Sits at the neutral-bucket alongside bare and plain.
A geological vent through which magma reaches the surface — the eruptive structures of the Pacific Ring of Fire, the Hawaiian shields, the European stratovolcanoes from Vesuvius to Hekla. The color refers to fresh volcanic ash on a recently active flank: a deep, slightly muted dark gray with the matte finish of pulverized basaltic glass. Warmer than basalt, drier than asphalt, with the geological weight of a process that builds continents and resurfaces seafloors.
Closest matches
The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.
Variations
Click any swatch to exploreHarmonies
Accessibility
How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.
The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.
Wide gamut
The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.
This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.