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Cavalier Rhododendron

#b6339c
Notes

Cavalier Rhododendron (#B6339C) 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 (312°, 56%, 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b6339c
RGB
rgb(182, 51, 156)
HSL
hsl(312, 56%, 46%)
HWB
hwb(312 20% 29%)
OKLCH
oklch(55.4% 0.200 337.1)
HSV
hsv(312, 72%, 71%)
LAB
lab(45.24% 62.57 -28.61)
LCH
lch(45.24% 68.80 335.43)
CMYK
cmyk(0%, 72%, 14%, 29%)

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.

Rhododendron
noun

Eurasian and Himalayan Rhododendron genus — particularly the R. ponticum and R. arboreum species, whose deep-magenta truss-flowers cover the lower Himalayan and Caucasian highlands in May. Rhododendron color refers to a fully bloomed Rhododendron arboreum terminal truss in a Himalayan understory: a saturated, slightly cool deep magenta with the velvet finish of fresh broad-petaled bell-flowers in dense terminal 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.

#b6339c
Original
#375e9f
Protanopia
#637299
Deuteranopia
#c03b64
Tritanopia
#565656
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
5.33:1
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
3.94:1

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