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Velvety Hull Brick

#aa4123
Notes

Velvety Hull Brick (#AA4123) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (13°, 66%, 40%) 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
#aa4123
RGB
rgb(170, 65, 35)
HSL
hsl(13, 66%, 40%)
HWB
hwb(13 14% 33%)
OKLCH
oklch(51.5% 0.145 36.4)
P3
color(display-p3 0.6180 0.2816 0.1756)
HSV
hsv(13, 79%, 67%)
LAB
lab(41.92% 41.52 39.43)
LCH
lch(41.92% 57.26 43.53)
CMYK
cmyk(0%, 62%, 79%, 33%)

Etymology

Velvety
adjective

An adjectival form of velvet, used since the eighteenth century for colors that read as if they had the matte light-absorbing quality of velvet. Implies high saturation combined with a non-glossy surface — the matte richness of a deep wine in a fabric rather than in a glass. Sits in the bold-and-deep corner of the grid alongside plush and lush.

Hull
modifier

Old English hulu, husk / shell. As a color modifier, hull implies a ship's-body-and-skin quality, the visual register of Royal-Navy-and-merchant-marine-hull hand-laid clinker-and-carvel-built timber-and-iron-and-steel ship's-hull-and-skin maritime-architecture surfaces under ship-hull-and-waterline maritime-and-dry-dock light. Sits at the modifier-and-nautical end of the grid, parallel to keel and prow 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.

#aa4123
Original
#5f541f
Protanopia
#786c1f
Deuteranopia
#bb273b
Tritanopia
#555555
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
6.02:1
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
3.49:1

Wide gamut

Display P3 representation

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.

sRGB hex
sRGB hex
##AA4123
Display P3
Display P3
color(display-p3 0.6180 0.2816 0.1756)
P3 has subtle headroomOKLCH chroma 0.145

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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