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Bubbly Beech

#5bb843
Notes

Bubbly Beech (#5BB843) 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 (108°, 47%, 49%) 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
#5bb843
RGB
rgb(91, 184, 67)
HSL
hsl(108, 47%, 49%)
HWB
hwb(108 26% 28%)
OKLCH
oklch(70.1% 0.178 139.7)
HSV
hsv(108, 64%, 72%)
LAB
lab(67.21% -49.50 49.62)
LCH
lch(67.21% 70.09 134.94)
CMYK
cmyk(51%, 0%, 64%, 28%)

Etymology

Bubbly
adjective

Imitative-onomatopoeic origin — adjectival suffix -y, evoking the sound of bubbles. As a color modifier, bubbly implies a saturated-and-effervescent-and-cheerful quality, the bright color of Champagne-and-Prosecco effervescent-wine carbonation-bubble-light reflection. Sits at the bright-and-effervescent end of the grid, parallel to fizzy and effervescent in usage.

Beech
noun

The genus Fagus — particularly F. sylvatica, the European beech — a deciduous tree whose smooth gray bark and golden-green spring foliage define European temperate woodland. The color refers to fresh beech foliage in May: a saturated, slightly yellow yellow-green with the satin finish of new leaf surface.

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.

#5bb843
Original
#bda935
Protanopia
#b1a14d
Deuteranopia
#52b29f
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
2.51:1
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
8.38:1

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