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Sterile Egypt

#ac7337
Notes

Sterile Egypt (#AC7337) is a true orange with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (31°, 52%, 45%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ac7337
RGB
rgb(172, 115, 55)
HSL
hsl(31, 52%, 45%)
HWB
hwb(31 22% 33%)
OKLCH
oklch(60.3% 0.104 64.8)
P3
color(display-p3 0.6420 0.4607 0.2583)
HSV
hsv(31, 68%, 67%)
LAB
lab(53.29% 16.65 41.41)
LCH
lch(53.29% 44.63 68.09)
CMYK
cmyk(0%, 33%, 68%, 33%)

Etymology

Sterile
adjective

Latin sterilis, barren / not-fertile — sharing root with Greek steiros (barren). As a color modifier, sterile implies a clear-and-medical-clean-and-stripped quality, the crisp color of operating-theater surgical-environment white-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to sanitary and hygienic in usage.

Egypt
noun

The civilization that established the Western world's earliest sustained color vocabulary — and the warm yellow-tan of Egyptian sandstone, the gold of Tutankhamun's death mask, and the ochre of pharaonic tomb painting. Egypt refers to the desert sand of the Theban necropolis at dawn: a saturated, slightly cool warm yellow-tan with the matte finish of windblown quartz.

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.

#ac7337
Original
#857731
Protanopia
#938538
Deuteranopia
#bb6666
Tritanopia
#7b7b7b
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).
AA Largeon White
3.99:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.26:1

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
##AC7337
Display P3
Display P3
color(display-p3 0.6420 0.4607 0.2583)
P3 has subtle headroomOKLCH chroma 0.104

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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