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Bastioned Mûre

#6b31b1
Notes

Bastioned Mûre (#6B31B1) is a true indigo 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 (267°, 57%, 44%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#6b31b1
RGB
rgb(107, 49, 177)
HSL
hsl(267, 57%, 44%)
HWB
hwb(267 19% 31%)
OKLCH
oklch(46.2% 0.191 299.5)
HSV
hsv(267, 72%, 69%)
LAB
lab(35.00% 50.96 -58.16)
LCH
lch(35.00% 77.33 311.23)
CMYK
cmyk(40%, 72%, 0%, 31%)

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.

Mûre
noun

French for blackberry / mulberry (Rubus fruticosus / Morus nigra) — the deep-violet aggregate-drupe of European hedgerows and Morus tree-fruit, both important anthocyanin-rich autumn fruits. Mûre color refers to a freshly picked Rubus fruticosus aggregate-drupe in a Berry hedgerow: a saturated, slightly cool deep violet with the matte finish of anthocyanin-rich aggregate-drupelet cluster on hand-collected fruit.

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.

#6b31b1
Original
#0052b5
Protanopia
#0051ae
Deuteranopia
#5b516e
Tritanopia
#474747
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).
AAAon White
7.78:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.70:1

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