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Buttressed Watermelon

#b93381
Notes

Buttressed Watermelon (#B93381) is a true magenta 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 (325°, 57%, 46%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b93381
RGB
rgb(185, 51, 129)
HSL
hsl(325, 57%, 46%)
HWB
hwb(325 20% 27%)
OKLCH
oklch(54.7% 0.185 349.3)
HSV
hsv(325, 72%, 73%)
LAB
lab(44.62% 59.74 -13.19)
LCH
lch(44.62% 61.18 347.55)
CMYK
cmyk(0%, 72%, 30%, 27%)

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.

Watermelon
noun

Citrullus lanatus, the African cucurbit cultivated for at least four thousand years for its high-water-content red flesh. The color refers to the cross-section of a ripe watermelon's interior: a saturated, slightly cool deep pink-red with the optical brightness of high-water-content fruit pigmented by lycopene. Cooler than coral, warmer than salmon, with the summer-cookout weight of a fruit that gives English a synonym for unripe-pink.

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.

#b93381
Original
#475a83
Protanopia
#6e727e
Deuteranopia
#c62c55
Tritanopia
#555555
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).
AAon White
5.45:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.85:1

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