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Hefty Watercress

#648c12
Notes

Hefty Watercress (#648C12) is a deep lime 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 (80°, 77%, 31%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#648c12
RGB
rgb(100, 140, 18)
HSL
hsl(80, 77%, 31%)
HWB
hwb(80 7% 45%)
OKLCH
oklch(58.9% 0.147 127.5)
HSV
hsv(80, 87%, 55%)
LAB
lab(53.50% -30.93 53.64)
LCH
lch(53.50% 61.92 119.97)
CMYK
cmyk(29%, 0%, 87%, 45%)

Etymology

Hefty
adjective

Old English hefig, heavy — adjectival suffix -y. As a color modifier, hefty implies a saturated-and-substantial-and-weighty quality where the hue carries the visual heft of a hand-cast pig-iron object. Sits at the bold-and-weighty end of the grid, parallel to substantial and weighty in usage.

Watercress
noun

Nasturtium officinale, the European aquatic mustard-family green eaten in soups, salads, and sandwiches — particularly in the celebrated cresson de fontaine of French bouquet garni. Watercress color refers to fresh-picked watercress in cool stream water: a saturated, slightly cool deep yellow-green with the satin finish of aquatic-leaf surface. Cooler than arugula.

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.

#648c12
Original
#948200
Protanopia
#8e7f22
Deuteranopia
#688577
Tritanopia
#7b7b7b
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
3.96:1
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
5.30:1

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