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Cleansed Aconitum

#166fa8
Notes

Cleansed Aconitum (#166FA8) is a true azure 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 (203°, 77%, 37%) 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
#166fa8
RGB
rgb(22, 111, 168)
HSL
hsl(203, 77%, 37%)
HWB
hwb(203 9% 34%)
OKLCH
oklch(52.1% 0.119 243.6)
HSV
hsv(203, 87%, 66%)
LAB
lab(44.75% -3.72 -37.44)
LCH
lch(44.75% 37.62 264.33)
CMYK
cmyk(87%, 34%, 0%, 34%)

Etymology

Cleansed
adjective

Old English clǣnsian, to make clean — past-participle of cleanse. As a color modifier, cleansed implies a clear-and-purified quality where the hue has been stripped of any contaminating tint. Sits at the crisp-and-clear end of the grid, parallel to fresh and pristine in usage.

Aconitum
noun

The genus Aconitummonkshood, the highly toxic European perennial whose deep blue-purple hooded flowers contain aconitine alkaloid (poisonous enough to kill on skin contact). The color refers to a fresh A. napellus in late summer: a saturated, slightly cool deep blue-violet with the matte finish of helmet-shaped flower.

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.

#166fa8
Original
#5471aa
Protanopia
#4064a7
Deuteranopia
#007d84
Tritanopia
#606060
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
5.42:1
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
3.87:1

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