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Sterile Mykonos

#64b8df
Notes

Sterile Mykonos (#64B8DF) 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 (199°, 66%, 63%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#64b8df
RGB
rgb(100, 184, 223)
HSL
hsl(199, 66%, 63%)
HWB
hwb(199 39% 13%)
OKLCH
oklch(74.5% 0.099 230.1)
HSV
hsv(199, 55%, 87%)
LAB
lab(71.09% -14.59 -27.33)
LCH
lch(71.09% 30.97 241.91)
CMYK
cmyk(55%, 17%, 0%, 13%)

Etymology

Sterile
adjective

Latin sterilis, barren / not-fertile — sharing root with Greek steiros (barren). As a color modifier, sterile implies a clear-and-medical-clean-and-stripped quality, the crisp color of operating-theater surgical-environment white-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to sanitary and hygienic in usage.

Mykonos
noun

The Cycladic island — and the saturated blue of Mykonos's painted shutters and the deep Aegean water around Paradise Beach. Mykonos color refers to a Mykonos painted-shutter blue: a saturated, slightly cool deep blue with the matte finish of weathered limewash-and-cobalt paint.

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.

#64b8df
Original
#a4b5e1
Protanopia
#93a8de
Deuteranopia
#00c3c5
Tritanopia
#a9a9a9
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
2.22:1
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
9.46:1

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