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Easy Zeus Lagoon

#3197a3
Notes

Easy Zeus Lagoon (#3197A3) is a true cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (186°, 54%, 42%) 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
#3197a3
RGB
rgb(49, 151, 163)
HSL
hsl(186, 54%, 42%)
HWB
hwb(186 19% 36%)
OKLCH
oklch(62.4% 0.092 206.4)
P3
color(display-p3 0.3137 0.5840 0.6314)
HSV
hsv(186, 70%, 64%)
LAB
lab(57.49% -24.72 -14.78)
LCH
lch(57.49% 28.80 210.88)
CMYK
cmyk(70%, 7%, 0%, 36%)

Etymology

Easy
adjective

Old French aisié, comfortable, at rest — used as a color modifier since the eighteenth century for hues that read as visually undemanding. Easy beige, easy gray: moderate saturation combined with optical restfulness. Sits at the crisp-bucket center alongside calm and settled.

Zeus
modifier

Greek Ζεύς, king-of-the-Olympian-gods. As a color modifier, zeus implies a thunderbolt-and-king-of-gods-and-Olympian quality, the visual register of Olympian-Zeus-and-Phidias-Pheidias-statue hand-thunderbolt-and-king-of-gods-and-Olympian Olympian-Zeus-and-Phidias-statue-and-Mount-Olympus zeus-and-thunderbolt-and-king-of-gods-and-Olympian surfaces under Olympian-Zeus-and-Phidias-statue-and-Mount-Olympus Pheidias-chryselephantine-and-Olympia thunder-cloud-light. Sits at the modifier-and-myth end of the grid, parallel to hera and atlas 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.

#3197a3
Original
#8a91a4
Protanopia
#7a85a3
Deuteranopia
#009e9a
Tritanopia
#828282
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).
AA Largeon White
3.45:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.09:1

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
##3197A3
Display P3
Display P3
color(display-p3 0.3137 0.5840 0.6314)
P3 has subtle headroomOKLCH chroma 0.092

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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