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Flat Pall Lagoon

#16b5d7
Notes

Flat Pall Lagoon (#16B5D7) 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°, 81%, 46%) 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
#16b5d7
RGB
rgb(22, 181, 215)
HSL
hsl(191, 81%, 46%)
HWB
hwb(191 9% 16%)
OKLCH
oklch(71.5% 0.125 218.2)
P3
color(display-p3 0.3294 0.6993 0.8280)
HSV
hsv(191, 90%, 84%)
LAB
lab(68.11% -25.49 -27.68)
LCH
lch(68.11% 37.63 227.36)
CMYK
cmyk(90%, 16%, 0%, 16%)

Etymology

Flat
adjective

Old Norse flatr, flat / level. As a color modifier, flat implies a clear-and-evenly-spread quality where the hue carries the matte-finish visual register of unmodulated single-plane surface. Sits at the crisp-and-balanced end of the grid, parallel to level and even in usage.

Pall
modifier

Latin pallium, cloak-or-funeral-cover. As a color modifier, pall implies a cloaked-and-shrouded-and-funereal quality, the visual register of Roman-Catholic-and-Anglican-pall hand-cloaked-and-shrouded-and-funereal Roman-Catholic-and-Anglican-and-Orthodox-funeral funeral-pall-and-coffin-shroud-and-altar-cloth surfaces under Roman-Catholic-and-Anglican funeral-pall-and-coffin-shroud cathedral-incense light. Sits at the modifier-and-mood end of the grid, parallel to gloom and shade 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.

#16b5d7
Original
#9fb0d9
Protanopia
#889fd7
Deuteranopia
#00c0c0
Tritanopia
#969696
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
2.43:1
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
8.62:1

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
##16B5D7
Display P3
Display P3
color(display-p3 0.3294 0.6993 0.8280)
P3 has subtle headroomOKLCH chroma 0.125

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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