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Antiseptic Waft Lagoon

#15b2d1
Notes

Antiseptic Waft Lagoon (#15B2D1) 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 (190°, 82%, 45%) places it in the highly saturated band at a mid 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#15b2d1
RGB
rgb(21, 178, 209)
HSL
hsl(190, 82%, 45%)
HWB
hwb(190 8% 18%)
OKLCH
oklch(70.5% 0.123 216.6)
HSV
hsv(190, 90%, 82%)
LAB
lab(66.98% -26.02 -26.12)
LCH
lch(66.98% 36.87 225.11)
CMYK
cmyk(90%, 15%, 0%, 18%)

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.

Waft
modifier

Middle English waft, related to wafian, to-wave-in-air. As a color modifier, waft implies a gently-conveyed-and-air-borne-and-drifting quality, the visual register of incense-and-rose-petal-waft hand-gently-conveyed-and-air-borne-and-drifting incense-and-rose-petal-and-summer-curtain wafted-and-gently-conveyed-and-air-borne surfaces under incense-and-rose-petal-and-summer-curtain church-thurible-and-walled-rose-garden-and-open-window airborne-drift-light. Sits at the modifier-and-mood end of the grid, parallel to drift and mist 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

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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.

#15b2d1
Original
#9dacd3
Protanopia
#879cd1
Deuteranopia
#00bdbc
Tritanopia
#939393
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
2.52:1
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
8.32:1

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