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Smooth Torrent Lagoon

#01808a
Notes

Smooth Torrent Lagoon (#01808A) is a deep 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 (184°, 99%, 27%) places it in the highly saturated band at a dark 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
#01808a
RGB
rgb(1, 128, 138)
HSL
hsl(184, 99%, 27%)
HWB
hwb(184 0% 46%)
OKLCH
oklch(54.7% 0.093 204.4)
P3
color(display-p3 0.2168 0.4942 0.5342)
HSV
hsv(184, 99%, 54%)
LAB
lab(48.61% -25.46 -13.83)
LCH
lch(48.61% 28.98 208.51)
CMYK
cmyk(99%, 7%, 0%, 46%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Torrent
modifier

Latin torrens, rushing-or-burning-stream. As a color modifier, torrent implies a rushing-and-deluge-and-flash-flood quality, the visual register of Alpine-and-Pyrenean-torrent hand-rushing-and-deluge-and-flash-flood Alpine-and-Pyrenean-torrent-and-monsoon-deluge torrent-and-rushing-and-deluge surfaces under Alpine-and-Pyrenean-torrent-and-monsoon-deluge Alpine-Dolomites-and-Pyrenean-cirque deluge-rushing-water-light. Sits at the modifier-and-weather end of the grid, parallel to rain and thaw 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.

#01808a
Original
#747a8b
Protanopia
#646e8a
Deuteranopia
#008683
Tritanopia
#666666
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
4.71:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.46:1

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
##01808A
Display P3
Display P3
color(display-p3 0.2168 0.4942 0.5342)
P3 has subtle headroomOKLCH chroma 0.093

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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