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Lucid Shag Lagoon

#1dadc7
Notes

Lucid Shag Lagoon (#1DADC7) 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 (189°, 75%, 45%) 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
#1dadc7
RGB
rgb(29, 173, 199)
HSL
hsl(189, 75%, 45%)
HWB
hwb(189 11% 22%)
OKLCH
oklch(68.9% 0.116 214.1)
P3
color(display-p3 0.3214 0.6685 0.7677)
HSV
hsv(189, 85%, 78%)
LAB
lab(65.18% -26.34 -23.35)
LCH
lch(65.18% 35.20 221.56)
CMYK
cmyk(85%, 13%, 0%, 22%)

Etymology

Lucid
adjective

Latin lūcidus, clear / bright — derived from lūx (light). As a color modifier, lucid implies a clear-and-readable quality where the hue is unambiguous and free of optical clutter. Sits at the crisp-and-clear end of the grid, parallel to pellucid and plain in usage.

Shag
modifier

Old Norse skagg, beard / rough-hair. As a color modifier, shag implies a rough-and-shaggy-hair-or-pile quality, the visual register of Mid-Century-Modern-and-1970s-shag-rug hand-tufted-and-rough-and-shaggy wool-and-yarn-and-pile Mid-Century-Modern-and-1970s shag-rug surfaces under Mid-Century-Modern-and-1970s shag-rug interior-decoration light. Sits at the modifier-and-texture end of the grid, parallel to fuzz and fluff 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.

#1dadc7
Original
#9aa7c8
Protanopia
#8597c7
Deuteranopia
#00b7b5
Tritanopia
#909090
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
2.67:1
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
7.85:1

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
##1DADC7
Display P3
Display P3
color(display-p3 0.3214 0.6685 0.7677)
P3 has subtle headroomOKLCH chroma 0.116

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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