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Trustworthy Hover Lagoon

#28bcdb
Notes

Trustworthy Hover Lagoon (#28BCDB) 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°, 71%, 51%) 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
#28bcdb
RGB
rgb(40, 188, 219)
HSL
hsl(190, 71%, 51%)
HWB
hwb(190 16% 14%)
OKLCH
oklch(73.5% 0.123 216.3)
HSV
hsv(190, 82%, 86%)
LAB
lab(70.54% -26.51 -26.11)
LCH
lch(70.54% 37.21 224.56)
CMYK
cmyk(82%, 14%, 0%, 14%)

Etymology

Trustworthy
adjective

Old English trēow, trust — adjectival suffix -worthy. As a color modifier, trustworthy implies a clear-and-reliable-and-honest quality where the hue carries the visual register of confidence-deserving-and-faithful-performance design-element. Sits at the crisp-and-honest end of the grid, parallel to reliable and dependable in usage.

Hover
modifier

Middle English hoveren, to-remain-suspended. As a color modifier, hover implies a suspended-and-floating-and-hesitant quality, the visual register of kestrel-and-hummingbird-hover hand-suspended-and-floating-and-hesitant kestrel-and-hummingbird-and-dragonfly hovered-and-suspended-and-floating-and-hesitant surfaces under kestrel-and-hummingbird-and-dragonfly heat-shimmer-and-summer-meadow-and-cliff-edge mid-air-light. Sits at the modifier-and-mood end of the grid, parallel to float and flit 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.

#28bcdb
Original
#a7b6dd
Protanopia
#90a5db
Deuteranopia
#00c7c6
Tritanopia
#9f9f9f
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
2.26:1
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
9.31:1

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