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Open Yarn Lagoon

#24b7d8
Notes

Open Yarn Lagoon (#24B7D8) 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 (191°, 71%, 49%) 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
#24b7d8
RGB
rgb(36, 183, 216)
HSL
hsl(191, 71%, 49%)
HWB
hwb(191 14% 15%)
OKLCH
oklch(72.2% 0.123 217.9)
P3
color(display-p3 0.3468 0.7073 0.8322)
HSV
hsv(191, 83%, 85%)
LAB
lab(68.89% -25.30 -27.01)
LCH
lch(68.89% 37.01 226.88)
CMYK
cmyk(83%, 15%, 0%, 15%)

Etymology

Open
adjective

Old English open, unobstructed — used as a color modifier since the eighteenth century for hues that read as airy or uncrowded. Open blue, open green: moderate saturation combined with optical spaciousness, the slight visual breath of a hue that doesn't crowd the surface it covers. Sits at the crisp-bucket center alongside clear.

Yarn
modifier

Old English gearn, spun-thread. As a color modifier, yarn implies a hand-spun-thread-and-skein quality, the visual register of hand-spun-yarn-skein hand-spun-and-skeined wool-and-cotton-and-linen hand-spun-yarn-and-skein surfaces under hand-spun-and-skeined yarn-and-skein workshop-light. Sits at the modifier-and-texture end of the grid, parallel to spun and knit 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.

#24b7d8
Original
#a2b2da
Protanopia
#8ba1d8
Deuteranopia
#00c2c1
Tritanopia
#9a9a9a
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
2.38:1
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
8.84:1

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
##24B7D8
Display P3
Display P3
color(display-p3 0.3468 0.7073 0.8322)
P3 has subtle headroomOKLCH chroma 0.123

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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