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Punchy Patina

#42bb6d
Notes

Punchy Patina (#42BB6D) 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 (141°, 48%, 50%) 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
#42bb6d
RGB
rgb(66, 187, 109)
HSL
hsl(141, 48%, 50%)
HWB
hwb(141 26% 27%)
OKLCH
oklch(70.6% 0.156 151.7)
HSV
hsv(141, 65%, 73%)
LAB
lab(67.87% -50.96 29.87)
LCH
lch(67.87% 59.07 149.63)
CMYK
cmyk(65%, 0%, 42%, 27%)

Etymology

Punchy
adjective

A modern adjectival form of punch, to strike sharply. Used as a color word since the early twentieth century for hues that read as highly contrasting and visually loud. Punchy red, punchy yellow: the implication is full saturation combined with optical impact. Sits across the bold and bright buckets, near vivid and striking.

Patina
noun

The thin corrosion layer that develops on copper, bronze, and other metals over time — sometimes copper carbonate (verdigris), sometimes copper sulfate, depending on environment. The color refers to mature exposed-bronze patina on a public statue: a soft, slightly muted blue-green with the powdery finish of mineral oxide. Drabber than verdigris, cooler than celadon, with the slow-time weight of a surface that records its age.

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.

#42bb6d
Original
#bcac67
Protanopia
#aca172
Deuteranopia
#0ab8a8
Tritanopia
#9c9c9c
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
2.45:1
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
8.56:1

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