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Hygienic Gust Ocean

#187e9c
Notes

Hygienic Gust Ocean (#187E9C) is a true cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (194°, 73%, 35%) 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
#187e9c
RGB
rgb(24, 126, 156)
HSL
hsl(194, 73%, 35%)
HWB
hwb(194 9% 39%)
OKLCH
oklch(55.3% 0.097 223.6)
P3
color(display-p3 0.2336 0.4868 0.5995)
HSV
hsv(194, 85%, 61%)
LAB
lab(48.90% -16.73 -23.92)
LCH
lch(48.90% 29.19 235.03)
CMYK
cmyk(85%, 19%, 0%, 39%)

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.

Gust
modifier

Old Norse gustr, sudden-burst-of-wind. As a color modifier, gust implies a sudden-burst-and-cliff-top-and-driven quality, the visual register of Cornish-cliff-and-Hebridean-gust hand-sudden-burst-and-cliff-top-and-driven Cornish-cliff-and-Hebridean-gust-and-North-Atlantic-front gust-and-sudden-burst-and-cliff-top surfaces under Cornish-cliff-and-Hebridean-gust-and-North-Atlantic-front Lizard-Point-and-Outer-Hebrides-and-Faroe-passage cliff-top-wind-light. Sits at the modifier-and-weather end of the grid, parallel to zephyr and mistral in usage.

Ocean
noun

The body of saltwater that covers seventy percent of Earth's surface — a single connected mass divided by convention into Atlantic, Pacific, Indian, Southern, and Arctic. The color refers to the average reflectance of mid-depth temperate ocean: a saturated, slightly green-shifted deep blue with the optical depth of a body of water that absorbs all light below the photic zone. Deeper than mediterranean, cooler than peacock.

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.

#187e9c
Original
#6d7b9e
Protanopia
#5c6f9c
Deuteranopia
#008788
Tritanopia
#6a6a6a
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).
AAon White
4.66:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.50:1

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
##187E9C
Display P3
Display P3
color(display-p3 0.2336 0.4868 0.5995)
P3 has subtle headroomOKLCH chroma 0.097

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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