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Gladiatorial Tin Forest

#278a1d
Notes

Gladiatorial Tin Forest (#278A1D) 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 (114°, 65%, 33%) 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
#278a1d
RGB
rgb(39, 138, 29)
HSL
hsl(114, 65%, 33%)
HWB
hwb(114 11% 46%)
OKLCH
oklch(55.6% 0.169 141.8)
P3
color(display-p3 0.2758 0.5335 0.1895)
HSV
hsv(114, 79%, 54%)
LAB
lab(50.33% -48.71 46.59)
LCH
lch(50.33% 67.41 136.28)
CMYK
cmyk(72%, 0%, 79%, 46%)

Etymology

Gladiatorial
adjective

Latin gladiātōrius, of the gladiator — adjectival suffix, derived from gladius (short-sword). As a color modifier, gladiatorial implies a saturated-and-combative-and-bloody quality, the deep-rich color of Roman-Colosseum gladiator-arena bloody-tunic-and-shield combat-attire. Sits at the bold-and-formal end of the grid, parallel to spartan and valiant.

Tin
modifier

Old English tin, tin. As a color modifier, tin implies a soft-malleable-metal quality, the visual register of Cornish-and-Indonesian-tin-mining hand-cast-and-rolled tin-mining-and-tin-vessel-and-tin-toy soft-malleable-metal surfaces under hand-cast-and-rolled-tin workshop-light. Sits at the modifier-and-texture end of the grid, parallel to gold and foil 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.

#278a1d
Original
#8d7d02
Protanopia
#827529
Deuteranopia
#0c8676
Tritanopia
#6d6d6d
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
4.43:1
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
4.74:1

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
##278A1D
Display P3
Display P3
color(display-p3 0.2758 0.5335 0.1895)
P3 has subtle headroomOKLCH chroma 0.169

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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