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Bastioned Topiary

#1ba63a
Notes

Bastioned Topiary (#1BA63A) is a true green 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 (133°, 72%, 38%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1ba63a
RGB
rgb(27, 166, 58)
HSL
hsl(133, 72%, 38%)
HWB
hwb(133 11% 35%)
OKLCH
oklch(63.4% 0.186 145.8)
HSV
hsv(133, 84%, 65%)
LAB
lab(59.72% -57.06 44.78)
LCH
lch(59.72% 72.53 141.88)
CMYK
cmyk(84%, 0%, 65%, 35%)

Etymology

Bastioned
adjective

Italian bastionato, fortified-with-bastions — past-participle of bastion, derived from bastia (fortified-tower). As a color modifier, bastioned implies a saturated-and-fortified-and-projecting quality, the deep-rich color of Vauban-period military-fortress star-fort projecting-bastion stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and buttressed.

Topiary
noun

The horticultural art of clipping shrubs into ornamental shapes — perfected in the parterres of Versailles and the formal gardens of seventeenth-century European estates. Topiary color refers to a freshly clipped boxwood topiary: a saturated, slightly cool deep green with the matte finish of densely packed clipped leaves.

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.

#1ba63a
Original
#a9962d
Protanopia
#9a8c44
Deuteranopia
#00a28f
Tritanopia
#818181
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
3.20:1
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
6.56:1

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