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Imperial Gorm

#428431
Notes

Imperial Gorm (#428431) 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°, 46%, 35%) 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
#428431
RGB
rgb(66, 132, 49)
HSL
hsl(108, 46%, 35%)
HWB
hwb(108 19% 48%)
OKLCH
oklch(55.1% 0.135 139.7)
HSV
hsv(108, 63%, 52%)
LAB
lab(49.35% -37.65 37.54)
LCH
lch(49.35% 53.16 135.08)
CMYK
cmyk(50%, 0%, 63%, 48%)

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.

Gorm
noun

The Irish word that historically spans both blue and green — gorm is the gray-green of stormy Atlantic seas, the soft green of Irish hillsides, and the deep blue of the Tír gorm (deep blue land). The color refers to an Irish hillside in fog: a soft, slightly muted gray-green with the matte finish of mist-shrouded grass.

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.

#428431
Original
#887928
Protanopia
#7f7338
Deuteranopia
#3c8072
Tritanopia
#707070
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).
AAon White
4.59:1
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
4.58:1

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