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Serene Sardinia

#57afa1
Notes

Serene Sardinia (#57AFA1) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (170°, 35%, 51%) 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
#57afa1
RGB
rgb(87, 175, 161)
HSL
hsl(170, 35%, 51%)
HWB
hwb(170 34% 31%)
OKLCH
oklch(69.5% 0.088 182.0)
HSV
hsv(170, 50%, 69%)
LAB
lab(65.95% -29.94 -0.94)
LCH
lch(65.95% 29.96 181.80)
CMYK
cmyk(50%, 0%, 8%, 31%)

Etymology

Serene
adjective

Latin serēnus, clear / unclouded. As a color modifier, serene implies a clear-and-untroubled quality where the hue carries the visual register of cloudless-bright-day atmospheric stability. Sits at the crisp-and-calm end of the grid, parallel to placid and untroubled in usage.

Sardinia
noun

The Italian Mediterranean island — and the saturated turquoise of Sardinian Costa Smeralda (Emerald Coast) at Cala di Volpe and Spiaggia del Principe. Sardinia refers to a Costa Smeralda lagoon: a saturated, slightly cool deep blue-green with the optical clarity of cold Mediterranean water.

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.

#57afa1
Original
#a8a6a0
Protanopia
#9a9ca2
Deuteranopia
#2ab2ab
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
2.61:1
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
8.05:1

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