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Wholesome Ether Lagoon

#64cfe7
Notes

Wholesome Ether Lagoon (#64CFE7) 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°, 73%, 65%) 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
#64cfe7
RGB
rgb(100, 207, 231)
HSL
hsl(191, 73%, 65%)
HWB
hwb(191 39% 9%)
OKLCH
oklch(80.0% 0.104 214.5)
P3
color(display-p3 0.5017 0.8022 0.8937)
HSV
hsv(191, 57%, 91%)
LAB
lab(77.93% -24.09 -21.20)
LCH
lch(77.93% 32.09 221.34)
CMYK
cmyk(57%, 10%, 0%, 9%)

Etymology

Wholesome
adjective

An adjectival form of whole — used as a color modifier since the sixteenth century for hues that read as healthy and unadulterated. Wholesome cream, wholesome wheat: moderate saturation combined with the optical impression of a natural origin. Sits at the crisp-bucket alongside genuine.

Ether
modifier

Greek αἰθήρ, upper-air-or-quintessence. As a color modifier, ether implies a luminiferous-and-pure-upper-air quality, the visual register of Aristotelian-quintessence-and-luminiferous-ether hand-luminiferous-and-pure-upper-air Aristotelian-quintessence-and-luminiferous-and-Newtonian ether-and-luminiferous-and-pure-upper-air surfaces under Aristotelian-quintessence-and-luminiferous-and-Newtonian celestial-spheres-and-natural-philosophy upper-air-light. Sits at the modifier-and-cosmic end of the grid, parallel to plasma and nebula 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.

#64cfe7
Original
#bec9e8
Protanopia
#aabae7
Deuteranopia
#00d8d6
Tritanopia
#bababa
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
1.81:1
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
11.62:1

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
##64CFE7
Display P3
Display P3
color(display-p3 0.5017 0.8022 0.8937)
P3 has subtle headroomOKLCH chroma 0.104

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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