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Bulky Constantinople

#b55db9
Notes

Bulky Constantinople (#B55DB9) is a true violet 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 (297°, 40%, 55%) 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
#b55db9
RGB
rgb(181, 93, 185)
HSL
hsl(297, 40%, 55%)
HWB
hwb(297 36% 27%)
OKLCH
oklch(61.6% 0.163 325.7)
P3
color(display-p3 0.6648 0.3829 0.7067)
HSV
hsv(297, 50%, 73%)
LAB
lab(53.12% 48.91 -33.36)
LCH
lch(53.12% 59.20 325.70)
CMYK
cmyk(2%, 50%, 0%, 27%)

Etymology

Bulky
adjective

Old Norse búlki, cargo / mass — adjectival suffix -y. As a color modifier, bulky implies a saturated-and-massive-and-occupying quality where the hue takes up visual space with broad-and-heavy presence. Sits at the bold-and-weighty end of the grid, parallel to hefty and substantial in usage.

Constantinople
noun

Byzantine imperial capital (founded 324 CE as Nova Roma, fell 1453 CE) — and the regulatory home of the purpura monopoly, where Tyrian purple was a state-controlled imperial dye after Justinian I's edict (530 CE). Constantinople color refers to an Empress Theodora San Vitale mosaic robe: a saturated, slightly cool deep violet with the matte finish of multi-bath Tyrian shellfish dye on Byzantine silk.

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.

#b55db9
Original
#5378bc
Protanopia
#6d83b6
Deuteranopia
#b96883
Tritanopia
#767676
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).
AA Largeon White
4.01:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.23:1

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
##B55DB9
Display P3
Display P3
color(display-p3 0.6648 0.3829 0.7067)
P3 has subtle headroomOKLCH chroma 0.163

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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