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Dynamic Smaragdite

#39ae43
Notes

Dynamic Smaragdite (#39AE43) 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 (125°, 51%, 45%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#39ae43
RGB
rgb(57, 174, 67)
HSL
hsl(125, 51%, 45%)
HWB
hwb(125 22% 32%)
OKLCH
oklch(66.3% 0.180 144.5)
P3
color(display-p3 0.3636 0.6731 0.3180)
HSV
hsv(125, 67%, 68%)
LAB
lab(62.97% -54.11 44.55)
LCH
lch(62.97% 70.10 140.53)
CMYK
cmyk(67%, 0%, 61%, 32%)

Etymology

Dynamic
adjective

From the Greek dynamis, power — used as a color modifier since the late nineteenth century for hues that read as energetic and active. Dynamic red, dynamic orange: the implication is saturation combined with optical motion. Sits at the bright-bucket center alongside vibrant and lively.

Smaragdite
noun

An emerald-green variety of amphibole — closely related to actinolite, found in metamorphic rocks of the Italian Alps. The color refers to a polished Italian smaragdite: a saturated, slightly muted deep green with the slight fibrous texture of amphibole crystallography.

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.

#39ae43
Original
#b19e37
Protanopia
#a3954c
Deuteranopia
#18a997
Tritanopia
#8d8d8d
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
2.87:1
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
7.31:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##39AE43
Display P3
Display P3
color(display-p3 0.3636 0.6731 0.3180)
P3 has subtle headroomOKLCH chroma 0.180

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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