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Heavy Chili Brick

#9f3724
Notes

Heavy Chili Brick (#9F3724) is a true 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 (9°, 63%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#9f3724
RGB
rgb(159, 55, 36)
HSL
hsl(9, 63%, 38%)
HWB
hwb(9 14% 38%)
OKLCH
oklch(48.4% 0.142 32.5)
HSV
hsv(9, 77%, 62%)
LAB
lab(38.26% 42.12 34.50)
LCH
lch(38.26% 54.44 39.32)
CMYK
cmyk(0%, 65%, 77%, 38%)

Etymology

Heavy
adjective

Old English hefig, weighty — cognate with heave. Used as a color modifier since at least the seventeenth century to indicate weight in saturation as much as value: heavy with pigment, heavy-bodied. In the engine's adjective grid, heavy sits alongside deep and plush in the dark-and-saturated quadrant. Closer to a fabric description than a pure value word.

Chili
modifier

Nahuatl chīlli, capsicum-fruit. As a color modifier, chili implies a Mesoamerican-capsicum-and-fiery quality, the visual register of Mesoamerican-and-Oaxacan-chili hand-Mesoamerican-capsicum-and-fiery Mesoamerican-and-Oaxacan-chili-and-Yucatec-and-Veracruzano chili-and-Mesoamerican-capsicum surfaces under Mesoamerican-and-Oaxacan-chili-and-Yucatec-and-Veracruzano Oaxaca-and-Veracruz-and-Yucatán Mesoamerican-spice-light. Sits at the modifier-and-flavor end of the grid, parallel to pepper and pimento 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

Click any swatch to explore

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.

#9f3724
Original
#544c21
Protanopia
#6e6320
Deuteranopia
#af1b33
Tritanopia
#4c4c4c
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).
AAon White
6.89:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.05:1

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