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Bucolic Ash

#acafb8
Notes

Bucolic Ash (#ACAFB8) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (225°, 8%, 70%) places it in the muted 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#acafb8
RGB
rgb(172, 175, 184)
HSL
hsl(225, 8%, 70%)
HWB
hwb(225 67% 28%)
OKLCH
oklch(75.4% 0.013 271.2)
P3
color(display-p3 0.6766 0.6859 0.7183)
HSV
hsv(225, 7%, 72%)
LAB
lab(71.48% 0.70 -4.96)
LCH
lch(71.48% 5.00 278.01)
CMYK
cmyk(7%, 5%, 0%, 28%)

Etymology

Bucolic
adjective

Greek boukolikós, of-cattle-herding — adjectival suffix -ic. As a color modifier, bucolic implies a neutral-and-rural-and-pastoral quality, the neutral color of Constable-Stour-Valley-painting and Beethoven-Pastoral idyllic-rural-pastoral mood-evoking color treatment. Sits at the neutral-and-traditional end of the grid, parallel to pastoral and idyllic in usage.

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

This color has effectively no chroma (OKLCH C = 0.013) — it’s on the grayscale axis. Hue rotations don’t change a grayscale color, so complementary, analogous, triadic, and split-complementary all reduce to the same value. They aren’t shown because four identical tiles would be misleading.

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.

#acafb8
Original
#adb0b8
Protanopia
#acafb8
Deuteranopia
#aab1b2
Tritanopia
#afafaf
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
2.19:1
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
9.58:1

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
##ACAFB8
Display P3
Display P3
color(display-p3 0.6766 0.6859 0.7183)
Inside sRGBOKLCH chroma 0.013

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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