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Imperial Leo Forest

#288218
Notes

Imperial Leo Forest (#288218) is a deep green 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 (111°, 69%, 30%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#288218
RGB
rgb(40, 130, 24)
HSL
hsl(111, 69%, 30%)
HWB
hwb(111 9% 49%)
OKLCH
oklch(53.3% 0.162 141.1)
P3
color(display-p3 0.2650 0.5027 0.1712)
HSV
hsv(111, 82%, 51%)
LAB
lab(47.60% -46.05 45.64)
LCH
lch(47.60% 64.84 135.26)
CMYK
cmyk(69%, 0%, 82%, 49%)

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.

Leo
modifier

Latin leo, lion-of-the-zodiac. As a color modifier, leo implies a lion-and-fire-sign-and-Sun-ruled-fixed-fire quality, the visual register of Hellenic-Leo-and-Nemean-lion hand-lion-and-fire-sign-and-Sun-ruled-fixed-fire Hellenic-Leo-and-Nemean-lion-and-Hercules-twelve-labors leo-and-lion-and-fire-sign surfaces under Hellenic-Leo-and-Nemean-lion-and-Hercules-twelve-labors high-summer-and-July-and-August fixed-fire-sign-light. Sits at the modifier-and-zodiac end of the grid, parallel to cancer and virgo in usage.

Forest
noun

The dense canopy of a temperate or tropical woodland — oak, beech, pine, eucalyptus, mahogany — wherever leaves close above to filter the light below. Forest green refers to the average reflectance of a healthy mid-summer canopy seen from below: a saturated, slightly muted green with the matte finish of layered chlorophyll. Deeper than fern, cooler than olive, with the ecological weight of a word that has named every wooded biome on Earth.

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.

#288218
Original
#857500
Protanopia
#7b6e25
Deuteranopia
#167e6e
Tritanopia
#676767
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
4.89:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.30:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##288218
Display P3
Display P3
color(display-p3 0.2650 0.5027 0.1712)
P3 has subtle headroomOKLCH chroma 0.162

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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