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Etched Sanded Lagoon

#3dafc8
Notes

Etched Sanded Lagoon (#3DAFC8) is a true cyan with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (191°, 56%, 51%) 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
#3dafc8
RGB
rgb(61, 175, 200)
HSL
hsl(191, 56%, 51%)
HWB
hwb(191 24% 22%)
OKLCH
oklch(70.1% 0.106 215.4)
P3
color(display-p3 0.3726 0.6771 0.7722)
HSV
hsv(191, 70%, 78%)
LAB
lab(66.38% -23.69 -22.01)
LCH
lch(66.38% 32.34 222.90)
CMYK
cmyk(70%, 12%, 0%, 22%)

Etymology

Etched
adjective

German ätzen, to etch — past-participle of etch. As a color modifier, etched implies a clear-and-precisely-incised quality, the crisp color of Rembrandt-and-Dürer hand-pulled etching-print fine-line incised-image. Sits at the crisp-and-incised end of the grid, parallel to engraved and inscribed in usage.

Sanded
modifier

Old English sandian, to-sand. As a color modifier, sanded implies a hand-sanded-and-smoothed-wood quality, the visual register of Shaker-and-Mid-Century-Modern-sanded hand-sanded-and-smoothed-and-finished wood-and-stone-and-metal Shaker-and-Mid-Century-Modern hand-sanded-and-smoothed surfaces under Shaker-and-Mid-Century-Modern hand-sanded-and-smoothed workshop-light. Sits at the modifier-and-texture end of the grid, parallel to honed and buffed 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.

#3dafc8
Original
#9eaac9
Protanopia
#8a9bc8
Deuteranopia
#00b8b7
Tritanopia
#999999
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
2.57:1
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
8.16:1

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
##3DAFC8
Display P3
Display P3
color(display-p3 0.3726 0.6771 0.7722)
P3 has subtle headroomOKLCH chroma 0.106

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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