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Gladiatorial Vesuvianite

#1b8409
Notes

Gladiatorial Vesuvianite (#1B8409) 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°, 87%, 28%) 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
#1b8409
RGB
rgb(27, 132, 9)
HSL
hsl(111, 87%, 28%)
HWB
hwb(111 4% 48%)
OKLCH
oklch(53.5% 0.174 141.5)
P3
color(display-p3 0.2477 0.5100 0.1490)
HSV
hsv(111, 93%, 52%)
LAB
lab(47.95% -49.86 49.64)
LCH
lch(47.95% 70.36 135.12)
CMYK
cmyk(80%, 0%, 93%, 48%)

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.

Vesuvianite
noun

A calcium-aluminum-magnesium silicate gem — also called idocrase — mined principally near Mount Vesuvius (the source of its name) and in California. Yellow-green to brown-green in color. The color refers to a faceted Italian vesuvianite: a saturated, slightly muted yellow-green with the gem's internal warmth.

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.

#1b8409
Original
#877700
Protanopia
#7c6f1d
Deuteranopia
#00806f
Tritanopia
#656565
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
4.83:1
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
4.35:1

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
##1B8409
Display P3
Display P3
color(display-p3 0.2477 0.5100 0.1490)
P3 has subtle headroomOKLCH chroma 0.174

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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