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Buttressed Brunfelsia

#78028a
Notes

Buttressed Brunfelsia (#78028A) 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 (292°, 97%, 27%) 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
#78028a
RGB
rgb(120, 2, 138)
HSL
hsl(292, 97%, 27%)
HWB
hwb(292 1% 46%)
OKLCH
oklch(41.5% 0.197 321.1)
P3
color(display-p3 0.4296 0.0770 0.5217)
HSV
hsv(292, 99%, 54%)
LAB
lab(29.09% 58.93 -43.95)
LCH
lch(29.09% 73.52 323.29)
CMYK
cmyk(13%, 99%, 0%, 46%)

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.

Brunfelsia
noun

South American yesterday-today-tomorrow (Brunfelsia pauciflora) — a Brazilian Atlantic forest native shrub whose flowers open deep-violet on day one, fade to lavender on day two, and white on day three. Brunfelsia color refers to a freshly opened day-one Brunfelsia pauciflora flower: a saturated, slightly cool deep violet with the velvet finish of fresh five-petaled flat-corolla. Named for Otto Brunfels, German Renaissance botanist.

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.

#78028a
Original
#003d8d
Protanopia
#1c4887
Deuteranopia
#792a4f
Tritanopia
#252525
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
9.66:1
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
2.17:1

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
##78028A
Display P3
Display P3
color(display-p3 0.4296 0.0770 0.5217)
P3 has visible headroomOKLCH chroma 0.197

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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