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Even Shawl Lagoon

#18b3cd
Notes

Even Shawl Lagoon (#18B3CD) 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°, 79%, 45%) 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
#18b3cd
RGB
rgb(24, 179, 205)
HSL
hsl(189, 79%, 45%)
HWB
hwb(189 9% 20%)
OKLCH
oklch(70.6% 0.120 213.3)
HSV
hsv(189, 88%, 80%)
LAB
lab(67.16% -27.68 -23.64)
LCH
lch(67.16% 36.41 220.50)
CMYK
cmyk(88%, 13%, 0%, 20%)

Etymology

Even
adjective

Old English efen, flat, equal — used as a color modifier since the medieval period for hues that read as uniformly distributed across a surface. Even gray, even tan: the implication is moderate saturation combined with optical uniformity. Sits at the crisp-bucket center alongside steady and balanced.

Shawl
modifier

Persian shāl, long-folded-wrap. As a color modifier, shawl implies a Persian-Kashmiri-and-paisley-folded-wrap quality, the visual register of Persian-Kashmiri-and-paisley-shawl hand-Persian-Kashmiri-and-paisley-folded-wrap Persian-Kashmiri-and-paisley-shawl-and-Norwich-and-Paisley-loom shawl-and-Persian-Kashmiri-and-paisley-folded-wrap surfaces under Persian-Kashmiri-and-paisley-shawl-and-Norwich-and-Paisley-loom Mughal-Kashmir-and-Norwich-and-Paisley-loom paisley-shawl-light. Sits at the modifier-and-textile end of the grid, parallel to stole and sash 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

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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.

#18b3cd
Original
#a0adce
Protanopia
#899ccd
Deuteranopia
#00bdbb
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
2.51:1
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
8.37:1

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