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Spirited Smaragd

#42b54a
Notes

Spirited Smaragd (#42B54A) 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 (124°, 47%, 48%) 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
#42b54a
RGB
rgb(66, 181, 74)
HSL
hsl(124, 47%, 48%)
HWB
hwb(124 26% 29%)
OKLCH
oklch(68.5% 0.180 144.4)
HSV
hsv(124, 64%, 71%)
LAB
lab(65.51% -53.93 44.33)
LCH
lch(65.51% 69.81 140.58)
CMYK
cmyk(64%, 0%, 59%, 29%)

Etymology

Spirited
adjective

An adjectival form of spirit — used as a color modifier since the seventeenth century for hues that read as animate and characterful. Spirited orange, spirited green: the implication is saturation combined with personality, a color that feels like it has agency. Sits at the bright-bucket center alongside lively and vibrant.

Smaragd
noun

The German and Slavic word for emerald — borrowed from the Greek smaragdos via Latin smaragdus. Smaragd in German jewelry vocabulary refers to the deep green of fine Colombian emeralds. The color refers to a faceted Russian Imperial-period smaragd: a saturated, slightly cool deep green with the gem's signature internal warmth.

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.

#42b54a
Original
#b8a53f
Protanopia
#aa9b53
Deuteranopia
#27b09e
Tritanopia
#959595
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
2.64:1
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
7.94:1

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