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Imperial Lemonbalm

#4e9737
Notes

Imperial Lemonbalm (#4E9737) 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 (106°, 47%, 40%) 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
#4e9737
RGB
rgb(78, 151, 55)
HSL
hsl(106, 47%, 40%)
HWB
hwb(106 22% 41%)
OKLCH
oklch(60.8% 0.150 139.0)
HSV
hsv(106, 64%, 59%)
LAB
lab(56.12% -41.26 42.48)
LCH
lch(56.12% 59.21 134.17)
CMYK
cmyk(48%, 0%, 64%, 41%)

Etymology

Imperial
adjective

From the Latin imperialis, of the empire — applied to color since the medieval period for the hues reserved for sovereigns and empires: imperial purple of Tyrian dye, imperial yellow of Ming-dynasty porcelain. As a modifier, imperial implies saturation combined with the institutional weight of a color owned by a court. Sits in the bold-and-deep corner, alongside royal.

Lemonbalm
noun

Melissa officinalis, the European mint-family herb whose lemon-scented leaves perfume herbal teas and traditional medicine. The color refers to fresh lemon balm leaves in summer: a saturated, slightly yellow yellow-green with the matte finish of small mint-family leaves. Lighter than mint.

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.

#4e9737
Original
#9b8a2c
Protanopia
#92843f
Deuteranopia
#489283
Tritanopia
#818181
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
3.62:1
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
5.81:1

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