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Stable Mykonos

#51b8db
Notes

Stable Mykonos (#51B8DB) 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 (195°, 66%, 59%) 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
#51b8db
RGB
rgb(81, 184, 219)
HSL
hsl(195, 66%, 59%)
HWB
hwb(195 32% 14%)
OKLCH
oklch(73.6% 0.107 223.6)
P3
color(display-p3 0.4272 0.7126 0.8440)
HSV
hsv(195, 63%, 86%)
LAB
lab(70.27% -19.34 -26.45)
LCH
lch(70.27% 32.76 233.83)
CMYK
cmyk(63%, 16%, 0%, 14%)

Etymology

Stable
adjective

Latin stabilis, standing-firm — sharing root with stand. As a color modifier, stable implies a clear-and-firm-and-unchanging quality where the hue carries the visual register of resistant-to-modulation-and-fade pigmentation. Sits at the crisp-and-firm end of the grid, parallel to steady and settled 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.

#51b8db
Original
#a4b4dd
Protanopia
#91a6db
Deuteranopia
#00c3c3
Tritanopia
#a5a5a5
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
2.28:1
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
9.23:1

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
##51B8DB
Display P3
Display P3
color(display-p3 0.4272 0.7126 0.8440)
P3 has subtle headroomOKLCH chroma 0.107

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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