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Unwavering Hesperis

#a658e4
Notes

Unwavering Hesperis (#A658E4) is a true indigo with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (273°, 72%, 62%) 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
#a658e4
RGB
rgb(166, 88, 228)
HSL
hsl(273, 72%, 62%)
HWB
hwb(273 35% 11%)
OKLCH
oklch(61.6% 0.208 307.0)
HSV
hsv(273, 61%, 89%)
LAB
lab(52.61% 56.47 -58.83)
LCH
lch(52.61% 81.55 313.83)
CMYK
cmyk(27%, 61%, 0%, 11%)

Etymology

Unwavering
adjective

Old English un- (negation) plus wafrian (to flicker). As a color modifier, unwavering implies a saturated-and-constant quality where the hue maintains its full strength without flicker or shift. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm in usage.

Hesperis
noun

Eurasian Dame's rocket (Hesperis matronalis) — an evening-fragrant Brassicaceae perennial whose deep-violet four-petaled flowers naturalized across European hedgerows since the Roman era. Hesperis color refers to a fully bloomed Hesperis matronalis terminal raceme: a saturated, slightly cool deep violet with the velvet finish of fresh four-petaled flowers. The genus name comes from the Greek hespéra (evening), after the dusk-fragrance peak.

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.

#a658e4
Original
#067be8
Protanopia
#3d7ee1
Deuteranopia
#9c7496
Tritanopia
#737373
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).
AA Largeon White
4.09:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.14:1

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