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Heavy Leo Forest

#185f08
Notes

Heavy Leo Forest (#185F08) 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 (109°, 84%, 20%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#185f08
RGB
rgb(24, 95, 8)
HSL
hsl(109, 84%, 20%)
HWB
hwb(109 3% 63%)
OKLCH
oklch(42.5% 0.134 140.9)
P3
color(display-p3 0.1822 0.3671 0.1040)
HSV
hsv(109, 92%, 37%)
LAB
lab(34.79% -37.89 38.46)
LCH
lch(34.79% 53.99 134.57)
CMYK
cmyk(75%, 0%, 92%, 63%)

Etymology

Heavy
adjective

Old English hefig, weighty — cognate with heave. Used as a color modifier since at least the seventeenth century to indicate weight in saturation as much as value: heavy with pigment, heavy-bodied. In the engine's adjective grid, heavy sits alongside deep and plush in the dark-and-saturated quadrant. Closer to a fabric description than a pure value word.

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.

#185f08
Original
#625500
Protanopia
#5a5014
Deuteranopia
#075c50
Tritanopia
#4a4a4a
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).
AAAon White
7.84:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.68:1

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
##185F08
Display P3
Display P3
color(display-p3 0.1822 0.3671 0.1040)
P3 has subtle headroomOKLCH chroma 0.134

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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