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Authoritative Druid Forest

#338d15
Notes

Authoritative Druid Forest (#338D15) 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 (105°, 74%, 32%) 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
#338d15
RGB
rgb(51, 141, 21)
HSL
hsl(105, 74%, 32%)
HWB
hwb(105 8% 45%)
OKLCH
oklch(56.7% 0.172 139.7)
P3
color(display-p3 0.3026 0.5455 0.1781)
HSV
hsv(105, 85%, 55%)
LAB
lab(51.62% -47.61 50.37)
LCH
lch(51.62% 69.31 133.39)
CMYK
cmyk(64%, 0%, 85%, 45%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Druid
modifier

Latin Druidae, Druids. As a color modifier, druid implies a Celtic-priest-and-mistletoe quality, the visual register of Celtic-British-and-Gaulish-Druidic Druidic hand-cut sacred-grove-and-mistletoe-and-stone-circle pre-Christian-Celtic surfaces under Celtic-British-and-Gaulish Druidic sacred-grove-and-stone-circle dawn light. Sits at the modifier-and-cultural end of the grid, parallel to celtic and gaul 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.

#338d15
Original
#917f00
Protanopia
#867825
Deuteranopia
#268878
Tritanopia
#717171
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
4.23:1
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
4.96:1

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
##338D15
Display P3
Display P3
color(display-p3 0.3026 0.5455 0.1781)
P3 has subtle headroomOKLCH chroma 0.172

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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