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Buttressed Hyacinthine

#7b2880
Notes

Buttressed Hyacinthine (#7B2880) is a deep 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 (297°, 52%, 33%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#7b2880
RGB
rgb(123, 40, 128)
HSL
hsl(297, 52%, 33%)
HWB
hwb(297 16% 50%)
OKLCH
oklch(43.8% 0.158 325.5)
HSV
hsv(297, 69%, 50%)
LAB
lab(32.45% 47.59 -32.29)
LCH
lch(32.45% 57.51 325.85)
CMYK
cmyk(4%, 69%, 0%, 50%)

Etymology

Buttressed
adjective

Old French bouterez, thrusting-mass — past-participle of buttress, derived from bouter (to thrust). As a color modifier, buttressed implies a saturated-and-architecturally-supported quality, the deep-rich color of Gothic-Cathedral flying-buttress-and-rib-vault stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and reinforced.

Hyacinthine
noun

Purple dye of late-classical antiquity, mentioned in Pliny the Elder's Natural History (77 CE) as a substitute for the more expensive Tyrian purple, derived from a combination of woad and madder. Hyacinthine color refers to a hyacinthine-dyed Roman toga praetexta border: a saturated, slightly cool deep violet with the matte finish of multi-bath woad-and-madder overdye on woolen toga cloth. Slightly cooler than Tyrian.

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.

#7b2880
Original
#164683
Protanopia
#3a507e
Deuteranopia
#7e3550
Tritanopia
#404040
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
8.55:1
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
2.46:1

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