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Fortified Cabbage

#309d11
Notes

Fortified Cabbage (#309D11) 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 (107°, 80%, 34%) 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
#309d11
RGB
rgb(48, 157, 17)
HSL
hsl(107, 80%, 34%)
HWB
hwb(107 7% 38%)
OKLCH
oklch(61.0% 0.192 140.4)
HSV
hsv(107, 89%, 62%)
LAB
lab(56.86% -53.98 55.92)
LCH
lch(56.86% 77.73 133.99)
CMYK
cmyk(69%, 0%, 89%, 38%)

Etymology

Fortified
adjective

Latin fortificāre, to make strong — past-participle of fortify. As a color modifier, fortified implies a saturated-and-strengthened-and-defensive quality, the deep-rich color of Vauban-style military-fortification stone-and-earth rampart-and-bastion architecture. Sits at the bold-and-fortified end of the grid, parallel to bastioned and armored.

Cabbage
noun

Brassica oleracea var. capitata — the head-forming cabbage cultivated since the medieval period across Europe and East Asia. Cabbage color refers to a fresh head of green Savoy cabbage: a saturated, slightly cool deep yellow-green with the satin finish of crinkled cabbage leaf.

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

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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.

#309d11
Original
#a18e00
Protanopia
#958526
Deuteranopia
#1a9885
Tritanopia
#7c7c7c
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
3.53:1
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
5.96:1

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