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Robust Hortensia

#8a39af
Notes

Robust Hortensia (#8A39AF) is a true violet 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 (281°, 51%, 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8a39af
RGB
rgb(138, 57, 175)
HSL
hsl(281, 51%, 45%)
HWB
hwb(281 22% 31%)
OKLCH
oklch(50.8% 0.187 313.3)
HSV
hsv(281, 67%, 69%)
LAB
lab(40.29% 53.19 -48.21)
LCH
lch(40.29% 71.79 317.81)
CMYK
cmyk(21%, 67%, 0%, 31%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Hortensia
noun

French and Italian for hydrangea (Hydrangea macrophylla) — particularly the deep-violet macrophylla cultivars whose color depends on aluminum availability and soil pH. Hortensia color refers to a fully bloomed Hydrangea macrophylla mophead in acidic Breton soil: a saturated, slightly cool deep violet with the velvet finish of dense aluminum-anthocyanin-bonded sepal-flowers. Named after Hortense de Beauharnais, stepdaughter of Napoleon and Queen of Holland.

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.

#8a39af
Original
#005bb3
Protanopia
#3161ac
Deuteranopia
#86516f
Tritanopia
#535353
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).
AAon White
6.39:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.28:1

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