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Sturdy Sirocco Brick

#99371a
Notes

Sturdy Sirocco Brick (#99371A) 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 (14°, 71%, 35%) 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
#99371a
RGB
rgb(153, 55, 26)
HSL
hsl(14, 71%, 35%)
HWB
hwb(14 10% 40%)
OKLCH
oklch(47.3% 0.138 36.6)
P3
color(display-p3 0.5552 0.2414 0.1410)
HSV
hsv(14, 83%, 60%)
LAB
lab(37.08% 39.54 38.29)
LCH
lch(37.08% 55.04 44.08)
CMYK
cmyk(0%, 64%, 83%, 40%)

Etymology

Sturdy
adjective

Old French estourdi, stunned, reckless — drifted in English to mean robust, well-built. Used as a color modifier since the seventeenth century for hues that read as durable and unfussy — the working browns of saddle leather, the working greens of pasture wool. Sits in the bold-and-warm corner alongside robust and solid.

Sirocco
modifier

Arabic sharq, eastern-or-Saharan-wind. As a color modifier, sirocco implies a hot-Saharan-and-Mediterranean-wind quality, the visual register of Saharan-and-Sicilian-and-Maltese-sirocco hand-hot-Saharan-and-Mediterranean-wind Saharan-and-Sicilian-and-Maltese-sirocco-and-North-African sirocco-and-hot-Saharan-and-Mediterranean-wind surfaces under Saharan-and-Sicilian-and-Maltese-sirocco-and-North-African Sahara-and-Sicily-and-Malta-and-Tunis hot-North-African-wind-light. Sits at the modifier-and-weather end of the grid, parallel to mistral and zephyr 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.

#99371a
Original
#534916
Protanopia
#6b5f16
Deuteranopia
#a91d31
Tritanopia
#4a4a4a
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
7.20:1
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
2.92:1

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
##99371A
Display P3
Display P3
color(display-p3 0.5552 0.2414 0.1410)
P3 has subtle headroomOKLCH chroma 0.138

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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