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Antiseptic Wend Lagoon

#20b4d6
Notes

Antiseptic Wend Lagoon (#20B4D6) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (191°, 74%, 48%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#20b4d6
RGB
rgb(32, 180, 214)
HSL
hsl(191, 74%, 48%)
HWB
hwb(191 13% 16%)
OKLCH
oklch(71.3% 0.123 218.7)
P3
color(display-p3 0.3370 0.6956 0.8241)
HSV
hsv(191, 85%, 84%)
LAB
lab(67.87% -24.73 -27.49)
LCH
lch(67.87% 36.97 228.02)
CMYK
cmyk(85%, 16%, 0%, 16%)

Etymology

Antiseptic
adjective

Greek anti- (against) plus sēptikós (putrefying) — adjectival suffix -ic. As a color modifier, antiseptic implies a clear-and-disinfected-and-clinical quality, the crisp color of medical-laboratory and operating-theater hand-scrub-and-sanitizer surfaces. Sits at the crisp-and-clean end of the grid, parallel to sterile and sanitary in usage.

Wend
modifier

Old English wendan, to-turn-or-go. As a color modifier, wend implies a winding-and-turning-and-meandered quality, the visual register of pilgrim-path-and-river-wend hand-winding-and-turning-and-meandered pilgrim-path-and-river-and-Roman-road wended-and-winding-and-turning-and-meandered surfaces under pilgrim-path-and-river-and-Roman-road Camino-and-Pennine-Way-and-Kumano hilltop-pilgrim-light. Sits at the modifier-and-mood end of the grid, parallel to drift and roam in usage.

Lagoon
noun

A shallow body of saltwater partially or fully enclosed by a barrier — coral atoll lagoons in the Pacific, Venice's Laguna Veneta, the Florida Keys' backcountry. The color refers to the average reflectance of a calm tropical lagoon at midday: a saturated, slightly muted blue-green with the optical clarity of shallow water over white sand. Brighter than reef, cooler than aquamarine, with the postcard weight of a Pacific atoll seen from above.

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.

#20b4d6
Original
#9fafd8
Protanopia
#889ed6
Deuteranopia
#00bfbf
Tritanopia
#979797
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
2.45:1
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
8.56:1

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
##20B4D6
Display P3
Display P3
color(display-p3 0.3370 0.6956 0.8241)
P3 has subtle headroomOKLCH chroma 0.123

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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