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Sanitary Wire Lagoon

#37bbd5
Notes

Sanitary Wire Lagoon (#37BBD5) 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°, 65%, 53%) 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
#37bbd5
RGB
rgb(55, 187, 213)
HSL
hsl(190, 65%, 53%)
HWB
hwb(190 22% 16%)
OKLCH
oklch(73.3% 0.115 214.1)
P3
color(display-p3 0.3806 0.7232 0.8224)
HSV
hsv(190, 74%, 84%)
LAB
lab(70.28% -26.44 -23.21)
LCH
lch(70.28% 35.19 221.28)
CMYK
cmyk(74%, 12%, 0%, 16%)

Etymology

Sanitary
adjective

Latin sānitās, health — adjectival suffix -ary. As a color modifier, sanitary implies a clear-and-clean-and-medical quality, the crisp color of Bauhaus-and-Modern clinical-and-hospital interior-architecture white-tile-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to hygienic and sterile in usage.

Wire
modifier

Old English wīr, wire. As a color modifier, wire implies a thin-drawn-metal quality, the visual register of hand-drawn-and-coiled-wire hand-drawn-and-coiled iron-and-copper-and-gold thin-drawn-metal-wire-and-mesh surfaces under hand-drawn-and-coiled-wire workshop-light. Sits at the modifier-and-texture end of the grid, parallel to mesh and foil 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.

#37bbd5
Original
#a8b5d6
Protanopia
#93a5d5
Deuteranopia
#00c5c3
Tritanopia
#a1a1a1
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
2.27:1
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
9.23:1

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
##37BBD5
Display P3
Display P3
color(display-p3 0.3806 0.7232 0.8224)
P3 has subtle headroomOKLCH chroma 0.115

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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