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Decisive Stichtite

#a32196
Notes

Decisive Stichtite (#A32196) is a true violet 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 (306°, 66%, 38%) 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
#a32196
RGB
rgb(163, 33, 150)
HSL
hsl(306, 66%, 38%)
HWB
hwb(306 13% 36%)
OKLCH
oklch(50.7% 0.204 332.8)
HSV
hsv(306, 80%, 64%)
LAB
lab(39.71% 62.87 -33.90)
LCH
lch(39.71% 71.43 331.66)
CMYK
cmyk(0%, 80%, 8%, 36%)

Etymology

Decisive
adjective

From the Latin decidere, to cut off — used as a modifier for colors that read as firm and final. Decisive black, decisive red: the implication is that the color has settled on its position and won't drift. Sits in the bold-bucket corner alongside resolute, with a slightly sharper edge.

Stichtite
noun

Rare violet-pink chromium-bearing mineral first described from the Dundas deposits of Tasmania in 1910 by Robert Sticht. Stichtite color refers to a polished Dundas stichtite-and-serpentine cabochon: a saturated, slightly cool deep violet with the silky finish of fibrous magnesium-chromium hydroxide-carbonate. The mineral is the chromium-substituted analog of brugnatellite, valued in lapidary work for its banded color.

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.

#a32196
Original
#185299
Protanopia
#4f6493
Deuteranopia
#aa315b
Tritanopia
#454545
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
6.53:1
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
3.22:1

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