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Gleaming Pondweed

#66e7ac
Notes

Gleaming Pondweed (#66E7AC) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (153°, 73%, 65%) places it in the balanced 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#66e7ac
RGB
rgb(102, 231, 172)
HSL
hsl(153, 73%, 65%)
HWB
hwb(153 40% 9%)
OKLCH
oklch(84.0% 0.143 161.1)
P3
color(display-p3 0.5382 0.8947 0.6913)
HSV
hsv(153, 56%, 91%)
LAB
lab(83.42% -49.21 18.16)
LCH
lch(83.42% 52.45 159.74)
CMYK
cmyk(56%, 0%, 26%, 9%)

Etymology

Gleaming
adjective

The progressive participle of gleam, to shine intermittently. Used as a color word for hues with the slight optical motion of a polished or wet surface. Gleaming gold, gleaming red: the implication is luminance combined with the optical impression of specular highlight. Sits in the bright-and-glossy corner alongside lustrous.

Pondweed
noun

The genus Potamogeton — submerged aquatic plants of freshwater ponds and slow streams. The color refers to a clump of fresh pondweed seen through pond water: a soft, slightly cool deep yellow-green-blue with the optical complexity of submerged leaf scattering filtered sunlight.

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.

#66e7ac
Original
#e4d8a9
Protanopia
#d2cbb0
Deuteranopia
#32e6d7
Tritanopia
#c7c7c7
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).
Failon White
1.55:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
13.59:1

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
##66E7AC
Display P3
Display P3
color(display-p3 0.5382 0.8947 0.6913)
P3 has subtle headroomOKLCH chroma 0.143

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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