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Spotless Larimar

#66a6bd
Notes

Spotless Larimar (#66A6BD) is a true cyan 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 (196°, 40%, 57%) 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
#66a6bd
RGB
rgb(102, 166, 189)
HSL
hsl(196, 40%, 57%)
HWB
hwb(196 40% 26%)
OKLCH
oklch(69.1% 0.074 223.0)
P3
color(display-p3 0.4577 0.6446 0.7309)
HSV
hsv(196, 46%, 74%)
LAB
lab(64.78% -14.32 -18.21)
LCH
lch(64.78% 23.17 231.83)
CMYK
cmyk(46%, 12%, 0%, 26%)

Etymology

Spotless
adjective

Old English spott (spot) plus suffix -less. As a color modifier, spotless implies a clear-and-unmarked quality where the hue carries no contaminating speck or stain. Sits at the crisp-and-clean end of the grid, parallel to pristine and unblemished in usage.

Larimar
noun

A blue variety of pectolite — a calcium-sodium silicate — found only in one mountain range in the Dominican Republic. Marketed as a gemstone since the 1970s and named after a Spanish word for the sea. The color refers to a polished larimar cabochon: a soft, slightly muted light blue with the cloudy translucency of pectolite. Lighter than aqua, warmer than glacier, with the gem-trade specificity of a stone that occurs in exactly one place on Earth.

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.

#66a6bd
Original
#99a3be
Protanopia
#8c99bd
Deuteranopia
#3dadad
Tritanopia
#9a9a9a
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
2.71:1
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
7.75:1

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
##66A6BD
Display P3
Display P3
color(display-p3 0.4577 0.6446 0.7309)
Inside sRGBOKLCH chroma 0.074

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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