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Even Vesta Lagoon

#24b9d4
Notes

Even Vesta Lagoon (#24B9D4) 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°, 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
#24b9d4
RGB
rgb(36, 185, 212)
HSL
hsl(189, 71%, 49%)
HWB
hwb(189 14% 17%)
OKLCH
oklch(72.5% 0.121 213.9)
P3
color(display-p3 0.3503 0.7150 0.8181)
HSV
hsv(189, 83%, 83%)
LAB
lab(69.34% -27.60 -24.13)
LCH
lch(69.34% 36.66 221.17)
CMYK
cmyk(83%, 13%, 0%, 17%)

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.

Vesta
modifier

Latin Vesta, Roman-goddess-of-hearth. As a color modifier, vesta implies an asteroid-and-hearth-flame-and-bright-and-rocky quality, the visual register of Vesta-asteroid-and-Roman-hearth hand-asteroid-and-hearth-flame-and-bright Vesta-asteroid-and-Roman-hearth-and-Dawn-mission vesta-and-asteroid-and-hearth-flame-and-bright surfaces under Vesta-asteroid-and-Roman-hearth-and-Dawn-mission asteroid-belt-and-Vestal-Temple sacred-flame-light. Sits at the modifier-and-cosmic end of the grid, parallel to ceres and juno 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.

#24b9d4
Original
#a5b3d6
Protanopia
#8fa2d4
Deuteranopia
#00c3c1
Tritanopia
#9b9b9b
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
2.34:1
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
8.97:1

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
##24B9D4
Display P3
Display P3
color(display-p3 0.3503 0.7150 0.8181)
P3 has subtle headroomOKLCH chroma 0.121

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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