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Fortified Eudialyte

#810c66
Notes

Fortified Eudialyte (#810C66) is a deep 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 (314°, 83%, 28%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#810c66
RGB
rgb(129, 12, 102)
HSL
hsl(314, 83%, 28%)
HWB
hwb(314 5% 49%)
OKLCH
oklch(41.2% 0.170 340.6)
HSV
hsv(314, 91%, 51%)
LAB
lab(29.13% 53.35 -20.90)
LCH
lch(29.13% 57.30 338.60)
CMYK
cmyk(0%, 91%, 21%, 49%)

Etymology

Fortified
adjective

Latin fortificāre, to make strong — past-participle of fortify. As a color modifier, fortified implies a saturated-and-strengthened-and-defensive quality, the deep-rich color of Vauban-style military-fortification stone-and-earth rampart-and-bastion architecture. Sits at the bold-and-fortified end of the grid, parallel to bastioned and armored.

Eudialyte
noun

Rare zirconium-cyclosilicate first described from Greenland's Ilímaussaq Complex in 1819. The mineral's deep-raspberry-pink color comes from manganese substitution in the cyclosilicate ring sites. Eudialyte color refers to a polished Ilímaussaq eudialyte cabochon: a saturated, slightly cool deep magenta with the glassy finish of complex zirconium-sodium-cyclosilicate. The Greek genus name eu-dialytos means easily decomposed in acid.

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.

#810c66
Original
#1a3968
Protanopia
#414b64
Deuteranopia
#89113b
Tritanopia
#2b2b2b
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
9.64:1
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
2.18:1

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