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Vibrant Plumbago

#2f9dec
Notes

Vibrant Plumbago (#2F9DEC) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (205°, 83%, 55%) places it in the highly saturated band at a mid 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2f9dec
RGB
rgb(47, 157, 236)
HSL
hsl(205, 83%, 55%)
HWB
hwb(205 18% 7%)
OKLCH
oklch(67.3% 0.151 245.2)
HSV
hsv(205, 80%, 93%)
LAB
lab(62.31% -3.43 -48.25)
LCH
lch(62.31% 48.37 265.93)
CMYK
cmyk(80%, 33%, 0%, 7%)

Etymology

Vibrant
adjective

From the Latin vibrare, to shake — used as a color word since the seventeenth century for hues that read as alive and resonant. Vibrant orange, vibrant green: the implication is saturation combined with the optical impression of slight motion or energy. Sits at the bright-bucket center alongside vivid and lively.

Plumbago
noun

Plumbago auriculata, the South African shrub whose pale-blue five-petaled flowers cluster on stems through summer. The Latin name traces to plumbum, lead, for the plant's purported ability to cure lead-related skin afflictions. The color refers to a fresh plumbago bloom: a soft, slightly violet-shifted very pale blue with the matte finish of a five-petaled flower. Lighter than larkspur, cooler than periwinkle.

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

Click any swatch to explore

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.

#2f9dec
Original
#78a0ef
Protanopia
#5d8feb
Deuteranopia
#00b0ba
Tritanopia
#8b8b8b
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
2.94:1
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
7.15:1

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