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Mighty Cupola Brick

#8a1b03
Notes

Mighty Cupola Brick (#8A1B03) 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 (11°, 96%, 28%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8a1b03
RGB
rgb(138, 27, 3)
HSL
hsl(11, 96%, 28%)
HWB
hwb(11 1% 46%)
OKLCH
oklch(41.3% 0.149 33.0)
HSV
hsv(11, 98%, 54%)
LAB
lab(29.90% 45.01 41.42)
LCH
lch(29.90% 61.16 42.62)
CMYK
cmyk(0%, 80%, 98%, 46%)

Etymology

Mighty
adjective

Old English mihtig, strong — adjectival suffix -y, sharing root with German mächtig. As a color modifier, mighty implies a saturated-and-strong-presence quality, where the hue commands visual attention through pure pigmentation strength. Sits at the bold-and-saturated end of the grid, parallel to forceful and commanding in tone.

Cupola
modifier

Italian cupola, small-dome. As a color modifier, cupola implies a small-roof-dome quality, the visual register of Italian-and-American-Cupola hand-built small-rooftop dome-and-lantern decorative-cupola architectural surfaces under Italian-villa-and-American-courthouse cupola light. Sits at the modifier-and-architecture end of the grid, parallel to dome and turret in usage.

Brick
noun

Fired clay, mineral red. The color refers to common building brick — iron-rich earthenware kilned to the specific dusky red-orange of a Victorian terrace, a Roman aqueduct, an adobe wall in New Mexico. Less saturated than ruby, warmer than burgundy, with a chalky cast that reads as architectural rather than decorative.

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.

#8a1b03
Original
#3f3700
Protanopia
#5a4f00
Deuteranopia
#990018
Tritanopia
#313131
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
9.38:1
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
2.24:1

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