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Susurrant Cycladic

#63838a
Notes

Susurrant Cycladic (#63838A) is a true cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (191°, 16%, 46%) places it in the muted 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
#63838a
RGB
rgb(99, 131, 138)
HSL
hsl(191, 16%, 46%)
HWB
hwb(191 39% 46%)
OKLCH
oklch(58.8% 0.038 212.6)
P3
color(display-p3 0.4140 0.5102 0.5371)
HSV
hsv(191, 28%, 54%)
LAB
lab(52.64% -9.55 -7.46)
LCH
lch(52.64% 12.11 218.00)
CMYK
cmyk(28%, 5%, 0%, 46%)

Etymology

Susurrant
adjective

Latin susurrans, whispering — present-participle of susurrate. As a color modifier, susurrant implies a hushed-and-whispering-and-soft-rustling quality where the hue carries the visual register of aspen-and-poplar leaf-rustling ambient soft-rustling-color tone. Sits at the hushed-and-soft end of the grid, parallel to whispering and murmuring in usage.

Cycladic
noun

Of the Cyclades, the Greek archipelago — and the saturated blue of Cycladic-island cupolas, painted blue-and-white church domes, and the deep Mediterranean water of Mykonos, Santorini, Naxos. Cycladic color refers to a Cycladic church dome against the sea: a saturated, slightly cool deep blue with the matte finish of 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.

#63838a
Original
#7d818a
Protanopia
#777b8a
Deuteranopia
#568685
Tritanopia
#7d7d7d
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).
AA Largeon White
4.08:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.14:1

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
##63838A
Display P3
Display P3
color(display-p3 0.4140 0.5102 0.5371)
Inside sRGBOKLCH chroma 0.038

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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