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Buttoned Mediterranean

#1bbebd
Notes

Buttoned Mediterranean (#1BBEBD) 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 (180°, 75%, 43%) 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
#1bbebd
RGB
rgb(27, 190, 189)
HSL
hsl(180, 75%, 43%)
HWB
hwb(180 11% 25%)
OKLCH
oklch(72.7% 0.120 194.1)
HSV
hsv(180, 86%, 75%)
LAB
lab(69.99% -37.76 -10.56)
LCH
lch(69.99% 39.20 195.63)
CMYK
cmyk(86%, 0%, 1%, 25%)

Etymology

Buttoned
adjective

Old French bouton, button — past-participle of button. As a color modifier, buttoned implies a clear-and-fastened-and-formal quality, the crisp color of Edwardian-period formal-attire fully-fastened-and-formally-dressed gentleman's-attire. Sits at the crisp-and-finished end of the grid, parallel to trim and pressed in usage.

Mediterranean
noun

The sea between Europe, Asia, and North Africa — the cradle of three continents' civilizations and the body of water named, in Latin, the middle of the earth. The color refers to mid-depth Mediterranean water on a clear summer day: a saturated, slightly green-shifted blue with the optical depth of a sea less colored by river silt than the Atlantic. Deeper than aqua, warmer than azure.

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

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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.

#1bbebd
Original
#b1b4bd
Protanopia
#9ca4be
Deuteranopia
#00c4bd
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
2.30:1
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
9.15:1

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