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Tenacious Rhododendron

#911f70
Notes

Tenacious Rhododendron (#911F70) is a true magenta 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 (317°, 65%, 35%) 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
#911f70
RGB
rgb(145, 31, 112)
HSL
hsl(317, 65%, 35%)
HWB
hwb(317 12% 43%)
OKLCH
oklch(45.6% 0.170 342.5)
HSV
hsv(317, 79%, 57%)
LAB
lab(34.34% 53.78 -18.99)
LCH
lch(34.34% 57.04 340.55)
CMYK
cmyk(0%, 79%, 23%, 43%)

Etymology

Tenacious
adjective

Latin tenāx, holding-fast — adjectival suffix -ous. As a color modifier, tenacious implies a saturated-and-clinging quality where the hue grips its substrate with stubborn pigmentation. Sits at the bold-and-resilient end of the grid, parallel to unyielding and adamant in usage.

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.

#911f70
Original
#2b4572
Protanopia
#4f576d
Deuteranopia
#9b2045
Tritanopia
#3d3d3d
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
7.97:1
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
2.63:1

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