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Buttressed Monarda

#911b82
Notes

Buttressed Monarda (#911B82) 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 (308°, 69%, 34%) 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
#911b82
RGB
rgb(145, 27, 130)
HSL
hsl(308, 69%, 34%)
HWB
hwb(308 11% 43%)
OKLCH
oklch(46.3% 0.186 334.2)
HSV
hsv(308, 81%, 57%)
LAB
lab(34.84% 57.52 -29.52)
LCH
lch(34.84% 64.65 332.83)
CMYK
cmyk(0%, 81%, 10%, 43%)

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.

Monarda
noun

North American bee balm (Monarda didyma) — a Lamiaceae native of eastern North-American woodland edges, whose deep-magenta whorled flower-heads attract Trochilidae hummingbirds and Bombus bumblebees. Monarda color refers to a fully bloomed Monarda didyma terminal flower-head in an Appalachian late-summer woodland edge: a saturated, slightly cool deep magenta with the velvet finish of fresh tubular flowers in dense whorled clusters.

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.

#911b82
Original
#184785
Protanopia
#47587f
Deuteranopia
#98284e
Tritanopia
#3c3c3c
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
7.83:1
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
2.68:1

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