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Steely Ash

#aca4ae
Notes

Steely Ash (#ACA4AE) is a balanced neutral with a mono character. It's a grayscale value, at home in typography, dividers, and the structural layer beneath stronger colors. Its HSL profile (288°, 6%, 66%) places it in the muted band at a mid lightness. It works well as secondary text, borders, and placeholder states. A reliable middle gray that reads cleanly in either light or dark contexts. Pair it with almost any saturated accent. It's built to sit underneath or behind stronger colors without fighting them.

HEX
#aca4ae
RGB
rgb(172, 164, 174)
HSL
hsl(288, 6%, 66%)
HWB
hwb(288 64% 32%)
OKLCH
oklch(72.8% 0.017 319.5)
P3
color(display-p3 0.6691 0.6442 0.6795)
HSV
hsv(288, 6%, 68%)
LAB
lab(68.30% 4.75 -4.12)
LCH
lch(68.30% 6.29 319.06)
CMYK
cmyk(1%, 6%, 0%, 32%)

Etymology

Steely
adjective

An adjectival form of steel — used as a color modifier since the eighteenth century for hues with the slight blue-gray of tempered or polished steel. Steely gray, steely blue: moderate-to-low saturation combined with the optical impression of metallic surface. Sits in the neutral-and-cool corner alongside cold.

Ash
noun

The mineral residue left after wood or coal completely combusts — calcium, potassium, and silicate that remain after carbon has gasified. Ash as a color refers to the soft pale gray of cooled hardwood ash: a soft, slightly muted gray with the matte finish of micron-scale mineral particulate. Cooler than smoke, warmer than dust, with the agricultural weight of a substance that fertilizes fields and clarifies soap-making lye.

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.

#aca4ae
Original
#a3a6ae
Protanopia
#a5a7ae
Deuteranopia
#aca5a7
Tritanopia
#a6a6a6
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).
Failon White
2.42:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
8.68:1

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
##ACA4AE
Display P3
Display P3
color(display-p3 0.6691 0.6442 0.6795)
Inside sRGBOKLCH chroma 0.017

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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