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Decisive Petunia

#6a36a9
Notes

Decisive Petunia (#6A36A9) is a true indigo 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 (267°, 52%, 44%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#6a36a9
RGB
rgb(106, 54, 169)
HSL
hsl(267, 52%, 44%)
HWB
hwb(267 21% 34%)
OKLCH
oklch(46.1% 0.175 300.3)
HSV
hsv(267, 68%, 66%)
LAB
lab(35.14% 46.27 -53.16)
LCH
lch(35.14% 70.48 311.04)
CMYK
cmyk(37%, 68%, 0%, 34%)

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.

Petunia
noun

Petunia × atkinsiana, the modern garden hybrid bred from South American Petunia species in the nineteenth century — now the most-planted annual bedding flower in North America. The color refers to a deep purple petunia in summer container bloom: a saturated, slightly red-shifted deep purple with the satiny finish of trumpet-shaped flowers. Cooler than orchid, warmer than violet, with the bedding-plant weight of a genus bred for nearly endless color and continuous bloom.

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.

#6a36a9
Original
#0052ac
Protanopia
#0052a7
Deuteranopia
#5c516b
Tritanopia
#494949
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
7.74:1
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
2.71:1

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