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Utilitarian Soothe Lagoon

#30acc6
Notes

Utilitarian Soothe Lagoon (#30ACC6) 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 (190°, 61%, 48%) 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
#30acc6
RGB
rgb(48, 172, 198)
HSL
hsl(190, 61%, 48%)
HWB
hwb(190 19% 22%)
OKLCH
oklch(69.0% 0.110 215.4)
P3
color(display-p3 0.3450 0.6651 0.7640)
HSV
hsv(190, 76%, 78%)
LAB
lab(65.13% -24.45 -22.85)
LCH
lch(65.13% 33.46 223.06)
CMYK
cmyk(76%, 13%, 0%, 22%)

Etymology

Utilitarian
adjective

Latin ūtilitās, usefulness — adjectival suffix -ian. As a color modifier, utilitarian implies a clear-and-purpose-fit-and-stripped-down quality, the crisp color of Shaker-and-Quaker anti-ornamental functional-and-no-frills craft tradition. Sits at the crisp-and-functional end of the grid, parallel to functional and workmanlike in usage.

Soothe
modifier

Old English sōthian, to-verify-and-calm. As a color modifier, soothe implies a calmed-and-balm-and-pacified quality, the visual register of apothecary-balm-and-lullaby-soothe hand-balmed-and-anointed-and-pacified apothecary-balm-and-cradle-song-and-bedside-vigil soothed-and-calmed-and-balmed surfaces under apothecary-balm-and-cradle-song bedside-vigil-and-nursery hush-and-balm-light. Sits at the modifier-and-mood end of the grid, parallel to lull and hush 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.

#30acc6
Original
#9aa6c7
Protanopia
#8698c6
Deuteranopia
#00b6b4
Tritanopia
#949494
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
2.68:1
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
7.84:1

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
##30ACC6
Display P3
Display P3
color(display-p3 0.3450 0.6651 0.7640)
P3 has subtle headroomOKLCH chroma 0.110

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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