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Bastioned Kyomurasaki

#820b85
Notes

Bastioned Kyomurasaki (#820B85) is a deep violet with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (299°, 85%, 28%) places it in the highly saturated band at a dark 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#820b85
RGB
rgb(130, 11, 133)
HSL
hsl(299, 85%, 28%)
HWB
hwb(299 4% 48%)
OKLCH
oklch(43.2% 0.192 327.1)
P3
color(display-p3 0.4663 0.1039 0.5038)
HSV
hsv(299, 92%, 52%)
LAB
lab(31.07% 58.38 -37.55)
LCH
lch(31.07% 69.42 327.25)
CMYK
cmyk(2%, 92%, 0%, 48%)

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.

Kyomurasaki
noun

Kyoto purple (京紫) — the warmer red-tinted purple of the Heian-period imperial court at Kyoto, distinguished from the cooler Edo-period edomurasaki. Kyomurasaki color refers to a Kyoto-court ceremonial kariginu hunting robe: a saturated, slightly cool deep violet with the silk luster of multi-bath gromwell-root-and-akane (madder) dye on woven silk crepe. Slightly warmer than Edomurasaki.

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

Click any swatch to explore

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.

#820b85
Original
#004088
Protanopia
#324e82
Deuteranopia
#86274d
Tritanopia
#2d2d2d
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
8.99:1
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
2.34:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##820B85
Display P3
Display P3
color(display-p3 0.4663 0.1039 0.5038)
P3 has visible headroomOKLCH chroma 0.192

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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