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Stable Cucumber

#acecad
Notes

Stable Cucumber (#ACECAD) is a soft green with a pastel character. It reads calm and airy, with enough chroma to feel intentional rather than washed out. Its HSL profile (121°, 63%, 80%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. For a confident two-color system, pair it with its complementary violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#acecad
RGB
rgb(172, 236, 173)
HSL
hsl(121, 63%, 80%)
HWB
hwb(121 67% 7%)
OKLCH
oklch(88.4% 0.107 145.0)
HSV
hsv(121, 27%, 93%)
LAB
lab(87.86% -32.16 24.25)
LCH
lch(87.86% 40.28 142.98)
CMYK
cmyk(27%, 0%, 27%, 7%)

Etymology

Stable
adjective

Latin stabilis, standing-firm — sharing root with stand. As a color modifier, stable implies a clear-and-firm-and-unchanging quality where the hue carries the visual register of resistant-to-modulation-and-fade pigmentation. Sits at the crisp-and-firm end of the grid, parallel to steady and settled in usage.

Cucumber
noun

Cucumis sativus, the climbing cucurbit domesticated in northern India and now grown across every continent. The color refers to the skin of a fresh field cucumber: a saturated, slightly muted green with the polished surface of unwaxed fruit, deeper at the rind and lighter at the seedy core. Brighter than pickle, cooler than pear, with the high water content that makes the word a synonym for cool composure.

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

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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.

#acecad
Original
#efe0a9
Protanopia
#e4dab0
Deuteranopia
#a6e8db
Tritanopia
#dadada
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
1.37:1
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
15.36:1

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