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Imperial Vihreä

#519617
Notes

Imperial Vihreä (#519617) is a deep lime with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (93°, 73%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#519617
RGB
rgb(81, 150, 23)
HSL
hsl(93, 73%, 34%)
HWB
hwb(93 9% 41%)
OKLCH
oklch(60.4% 0.167 135.0)
HSV
hsv(93, 85%, 59%)
LAB
lab(55.71% -42.21 53.94)
LCH
lch(55.71% 68.49 128.04)
CMYK
cmyk(46%, 0%, 85%, 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.

Vihreä
noun

The Finnish word for green — used for the saturated green of Finnish summer forests and the green-and-blue of the Finnish suomenlippu national flag's lake-and-forest symbolism. The color refers to a Finnish boreal forest understory: a saturated, slightly cool deep yellow-green with the matte finish of moss-and-undergrowth.

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.

#519617
Original
#9c8900
Protanopia
#938327
Deuteranopia
#4f907f
Tritanopia
#7e7e7e
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
3.67:1
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
5.72:1

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