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Firm Pompeii

#a3022a
Notes

Firm Pompeii (#A3022A) is a deep red with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (345°, 98%, 32%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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.

HEX
#a3022a
RGB
rgb(163, 2, 42)
HSL
hsl(345, 98%, 32%)
HWB
hwb(345 1% 36%)
OKLCH
oklch(45.4% 0.181 19.3)
HSV
hsv(345, 99%, 64%)
LAB
lab(33.98% 58.00 26.34)
LCH
lch(33.98% 63.70 24.43)
CMYK
cmyk(0%, 99%, 74%, 36%)

Etymology

Firm
adjective

Latin firmus, strong / stable — sharing root with English farm (originally a fixed-yearly-rental). As a color modifier, firm implies a saturated-and-resolute quality where the hue holds its visual position without wavering. Sits at the bold-and-firm end of the grid, parallel to steadfast and unwavering in usage.

Pompeii
noun

The Roman city buried by Vesuvius's 79 CE eruption — and the deep saturated red used on the wall frescoes preserved by the ash, named Pompeian Red for the place. The color refers to the Villa of the Mysteries fresco background: a saturated, slightly cool deep red with the matte finish of cinnabar-and-iron-oxide pigment in lime plaster. Deeper than crimson, cooler than vermillion.

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

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Harmonies

Accessibility

Color-vision simulation

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.

#a3022a
Original
#403c2a
Protanopia
#655b25
Deuteranopia
#b40018
Tritanopia
#272727
Achromatopsia
WCAG contrast

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.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
8.08:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.60:1

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