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Hygienic Sol Lagoon

#9fd9e5
Notes

Hygienic Sol Lagoon (#9FD9E5) is a soft 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 (190°, 57%, 76%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. 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
#9fd9e5
RGB
rgb(159, 217, 229)
HSL
hsl(190, 57%, 76%)
HWB
hwb(190 62% 10%)
OKLCH
oklch(85.0% 0.061 211.8)
P3
color(display-p3 0.6714 0.8447 0.8909)
HSV
hsv(190, 31%, 90%)
LAB
lab(83.26% -15.65 -11.86)
LCH
lch(83.26% 19.63 217.15)
CMYK
cmyk(31%, 5%, 0%, 10%)

Etymology

Hygienic
adjective

Greek hygieinós, healthful — derived from Hygieia (goddess of health). As a color modifier, hygienic implies a clear-and-medical-clean quality, the crisp color of Mid-Century-Modern clinical-and-hospital interior-architecture surfaces. Sits at the crisp-and-clean end of the grid, parallel to sanitary and sterile in usage.

Sol
modifier

Latin sol, sun-and-Roman-sun-god. As a color modifier, sol implies a Roman-sun-god-and-stellar-disc quality, the visual register of Roman-Sol-Invictus-and-Apollo-sun hand-Roman-sun-god-and-stellar-disc Roman-Sol-Invictus-and-Apollo-sun-and-Helios-chariot sol-and-Roman-sun-god-and-stellar-disc surfaces under Roman-Sol-Invictus-and-Apollo-sun-and-Helios-chariot December-25-and-Helios-and-quadriga noon-stellar-disc-light. Sits at the modifier-and-zodiac end of the grid, parallel to luna and terra 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.

#9fd9e5
Original
#cfd5e6
Protanopia
#c3cce5
Deuteranopia
#87dfdd
Tritanopia
#cecece
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
13.53:1

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
##9FD9E5
Display P3
Display P3
color(display-p3 0.6714 0.8447 0.8909)
Inside sRGBOKLCH chroma 0.061

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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