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Pleasant Cycladic

#63adc2
Notes

Pleasant Cycladic (#63ADC2) 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 (193°, 44%, 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#63adc2
RGB
rgb(99, 173, 194)
HSL
hsl(193, 44%, 57%)
HWB
hwb(193 39% 24%)
OKLCH
oklch(70.7% 0.080 218.2)
P3
color(display-p3 0.4575 0.6713 0.7507)
HSV
hsv(193, 49%, 76%)
LAB
lab(66.85% -17.35 -17.86)
LCH
lch(66.85% 24.90 225.84)
CMYK
cmyk(49%, 11%, 0%, 24%)

Etymology

Pleasant
adjective

From the French plaisant, pleasing — used as a color modifier since the fifteenth century for hues that read as agreeable, the kind of color that wears well over a long viewing without becoming demanding or fatiguing. Pleasant green, pleasant rose: moderate saturation combined with optical comfort. Sits at the crisp-bucket alongside easy and calm.

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.

#63adc2
Original
#9fa9c3
Protanopia
#919ec2
Deuteranopia
#2fb4b3
Tritanopia
#9f9f9f
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
2.53:1
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
8.29:1

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
##63ADC2
Display P3
Display P3
color(display-p3 0.4575 0.6713 0.7507)
Inside sRGBOKLCH chroma 0.080

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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