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Cool Watercress

#689d5a
Notes

Cool Watercress (#689D5A) is a true green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (107°, 27%, 48%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#689d5a
RGB
rgb(104, 157, 90)
HSL
hsl(107, 27%, 48%)
HWB
hwb(107 35% 38%)
OKLCH
oklch(64.2% 0.111 139.3)
P3
color(display-p3 0.4538 0.6102 0.3809)
HSV
hsv(107, 43%, 62%)
LAB
lab(59.70% -30.85 29.57)
LCH
lch(59.70% 42.73 136.21)
CMYK
cmyk(34%, 0%, 43%, 38%)

Etymology

Cool
adjective

Old English cōl, of low temperature — used as a color modifier as the complement to warm. Cool gray, cool blue: the optical impression of a slight blue-green shift, even within otherwise warm or neutral hues. Sits across the crisp, hushed, pale, and neutral buckets.

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

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.

#689d5a
Original
#a19355
Protanopia
#998e5e
Deuteranopia
#65998d
Tritanopia
#8d8d8d
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
3.20:1
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
6.56:1

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
##689D5A
Display P3
Display P3
color(display-p3 0.4538 0.6102 0.3809)
P3 has subtle headroomOKLCH chroma 0.111

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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