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Bastioned Susa

#9c369a
Notes

Bastioned Susa (#9C369A) 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 (301°, 49%, 41%) 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
#9c369a
RGB
rgb(156, 54, 154)
HSL
hsl(301, 49%, 41%)
HWB
hwb(301 21% 39%)
OKLCH
oklch(51.7% 0.180 328.6)
HSV
hsv(301, 65%, 61%)
LAB
lab(41.28% 54.71 -33.92)
LCH
lch(41.28% 64.37 328.20)
CMYK
cmyk(0%, 65%, 1%, 39%)

Etymology

Bastioned
adjective

Italian bastionato, fortified-with-bastions — past-participle of bastion, derived from bastia (fortified-tower). As a color modifier, bastioned implies a saturated-and-fortified-and-projecting quality, the deep-rich color of Vauban-period military-fortress star-fort projecting-bastion stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and buttressed.

Susa
noun

Persian Achaemenid winter capital — and the imperial court color storehouse for Tyrian purple tribute textiles imported from Phoenician Tyre and Sidon under Darius I (522–486 BCE). Susa color refers to a Susa-stored Achaemenid royal kandys coat: a saturated, slightly cool deep violet with the matte finish of multi-bath shellfish-dye on Persian-court silk-and-wool blend.

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.

#9c369a
Original
#2a599d
Protanopia
#506697
Deuteranopia
#a14363
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
6.16:1
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
3.41:1

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