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Diaphanous Honeydew

#e9fef0
Notes

Diaphanous Honeydew (#E9FEF0) 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 (140°, 91%, 95%) places it in the highly saturated band at a light lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#e9fef0
RGB
rgb(233, 254, 240)
HSL
hsl(140, 91%, 95%)
HWB
hwb(140 91% 0%)
OKLCH
oklch(97.8% 0.029 156.7)
HSV
hsv(140, 8%, 100%)
LAB
lab(97.83% -9.37 4.35)
LCH
lch(97.83% 10.33 155.07)
CMYK
cmyk(8%, 0%, 6%, 0%)

Etymology

Diaphanous
adjective

From the Greek diaphanēs, transparent — used as a color modifier since the seventeenth century for hues with the optical translucency of fine fabric. Diaphanous white, diaphanous pink: very low saturation combined with the optical impression of light passing through. Sits at the pale-bucket alongside sheer.

Honeydew
noun

Old English honeg-dēaw, honey-dew — the pale-cool-pale-gray-and-pale-cream aphid-secreted carbohydrate-rich excrement of late-summer-and-autumn deciduous-tree-foliage, often colonized by Cladosporium sooty-mold fungus. Honeydew color refers to a freshly secreted aphid honeydew drop on a Acer-pseudoplatanus (sycamore) leaf-surface in raking late-summer light: a pale cool gray with the glossy finish of pure-sugar aphid-excreted carbohydrate-rich droplet on a polished-leaf surface.

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.

#e9fef0
Original
#fefaef
Protanopia
#faf8f1
Deuteranopia
#e6fefa
Tritanopia
#f9f9f9
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
1.06:1
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
19.90:1

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