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Showy Petunia

#c57ceb
Notes

Showy Petunia (#C57CEB) is a true indigo 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 (279°, 74%, 70%) 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
#c57ceb
RGB
rgb(197, 124, 235)
HSL
hsl(279, 74%, 70%)
HWB
hwb(279 49% 8%)
OKLCH
oklch(70.6% 0.172 313.1)
HSV
hsv(279, 47%, 92%)
LAB
lab(63.58% 47.34 -45.08)
LCH
lch(63.58% 65.37 316.40)
CMYK
cmyk(16%, 47%, 0%, 8%)

Etymology

Showy
adjective

Old English scēawian, to look at — adjectival suffix -y. As a color modifier, showy implies a saturated-and-attention-grabbing quality, the bright color of Las-Vegas-and-Broadway neon-and-marquee theatrical-display lighting. Sits at the bright-and-flamboyant end of the grid, parallel to flamboyant and splashy in usage.

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.

#c57ceb
Original
#6496ef
Protanopia
#789ce8
Deuteranopia
#c28da9
Tritanopia
#949494
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).
Failon White
2.82:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.46:1

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