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Cavalier Buddleia

#3941a4
Notes

Cavalier Buddleia (#3941A4) is a true blue 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 (236°, 48%, 43%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3941a4
RGB
rgb(57, 65, 164)
HSL
hsl(236, 48%, 43%)
HWB
hwb(236 22% 36%)
OKLCH
oklch(43.0% 0.158 274.2)
HSV
hsv(236, 65%, 64%)
LAB
lab(32.55% 28.94 -54.58)
LCH
lch(32.55% 61.78 297.94)
CMYK
cmyk(65%, 60%, 0%, 36%)

Etymology

Cavalier
adjective

Italian cavaliere, horseman / knight via Latin caballārius. As a color modifier, cavalier implies a saturated-and-chivalrous-and-aristocratic quality, the deep-rich color of English-Civil-War royalist Cavalier military-faction velvet-and-lace-and-feathered-hat livery. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and knightly.

Buddleia
noun

Asian butterfly bush (Buddleja davidii) — introduced to Britain from western China in 1869 by Père Armand David, now a self-naturalizing escapee from cottage-garden cultivation across European wasteland. Buddleia color refers to a fully bloomed Buddleia davidii arching panicle: a saturated, slightly cool deep blue-violet with the velvet finish of fragrant tubular flowers. The bush is among the most attractive to Vanessa butterfly genera.

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.

#3941a4
Original
#0051a7
Protanopia
#0048a2
Deuteranopia
#00596c
Tritanopia
#464646
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
8.52:1
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
2.47:1

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Canvas