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Welcoming Eden Lagoon

#10b1d2
Notes

Welcoming Eden Lagoon (#10B1D2) 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°, 86%, 44%) places it in the highly saturated band at a mid 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
#10b1d2
RGB
rgb(16, 177, 210)
HSL
hsl(190, 86%, 44%)
HWB
hwb(190 6% 18%)
OKLCH
oklch(70.2% 0.124 217.8)
P3
color(display-p3 0.3177 0.6838 0.8087)
HSV
hsv(190, 92%, 82%)
LAB
lab(66.68% -25.40 -27.14)
LCH
lch(66.68% 37.17 226.89)
CMYK
cmyk(92%, 16%, 0%, 18%)

Etymology

Welcoming
adjective

Old English wel-cuman, well-coming — present-participle of welcome. As a color modifier, welcoming implies a clear-and-inviting-and-warm quality where the hue carries the visual register of cordial-and-hospitable color-tone. Sits at the crisp-and-cheerful end of the grid, parallel to hospitable and inviting in usage.

Eden
modifier

Hebrew ‘Ēden, garden-of-paradise. As a color modifier, eden implies a primal-paradise-and-garden-of-creation quality, the visual register of Genesis-Eden-and-Lucas-Cranach-paradise hand-primal-paradise-and-garden-of-creation Genesis-Eden-and-Lucas-Cranach-paradise-and-Northern-Renaissance eden-and-primal-paradise-and-garden-of-creation surfaces under Genesis-Eden-and-Lucas-Cranach-paradise-and-Northern-Renaissance Cranach-and-Bosch-and-Hieronymus primal-garden-light. Sits at the modifier-and-myth end of the grid, parallel to avalon and bliss 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.

#10b1d2
Original
#9cacd4
Protanopia
#859bd2
Deuteranopia
#00bcbb
Tritanopia
#919191
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
2.55:1
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
8.24:1

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
##10B1D2
Display P3
Display P3
color(display-p3 0.3177 0.6838 0.8087)
P3 has subtle headroomOKLCH chroma 0.124

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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