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Sturdy Amazonite

#39a853
Notes

Sturdy Amazonite (#39A853) is a true green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (134°, 49%, 44%) 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
#39a853
RGB
rgb(57, 168, 83)
HSL
hsl(134, 49%, 44%)
HWB
hwb(134 22% 34%)
OKLCH
oklch(64.9% 0.158 147.9)
HSV
hsv(134, 66%, 66%)
LAB
lab(61.22% -49.75 34.74)
LCH
lch(61.22% 60.68 145.08)
CMYK
cmyk(66%, 0%, 51%, 34%)

Etymology

Sturdy
adjective

Old French estourdi, stunned, reckless — drifted in English to mean robust, well-built. Used as a color modifier since the seventeenth century for hues that read as durable and unfussy — the working browns of saddle leather, the working greens of pasture wool. Sits in the bold-and-warm corner alongside robust and solid.

Amazonite
noun

A blue-green variety of microcline feldspar — colored by trace lead and water in its crystal structure. Mined since ancient times in the Russian Urals and now in Colorado, Madagascar, and Brazil. The color refers to a polished amazonite cabochon: a soft, slightly muted blue-green with the cloudy translucency of feldspar. Cooler than jade, warmer than cerulean, with the mineral-trade specificity of a stone named for the Amazon basin where it doesn't actually occur.

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.

#39a853
Original
#aa9a4c
Protanopia
#9c9059
Deuteranopia
#12a594
Tritanopia
#8a8a8a
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
3.04:1
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
6.90:1

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