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Steady Pegasus Lagoon

#47bbd6
Notes

Steady Pegasus Lagoon (#47BBD6) 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 (191°, 64%, 56%) 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
#47bbd6
RGB
rgb(71, 187, 214)
HSL
hsl(191, 64%, 56%)
HWB
hwb(191 28% 16%)
OKLCH
oklch(73.8% 0.109 216.2)
P3
color(display-p3 0.4101 0.7237 0.8263)
HSV
hsv(191, 67%, 84%)
LAB
lab(70.69% -24.00 -23.11)
LCH
lch(70.69% 33.32 223.92)
CMYK
cmyk(67%, 13%, 0%, 16%)

Etymology

Steady
adjective

Old English stede, place, position — drifted to mean firm and unmoving. Used as a color modifier since the seventeenth century for hues that read as reliable rather than dramatic. Steady gray, steady green: moderate saturation combined with optical calmness. Sits in the crisp-bucket center alongside settled.

Pegasus
modifier

Greek Πήγασος, winged-horse-of-myth. As a color modifier, pegasus implies a winged-horse-and-Great-Square quality, the visual register of Pegasus-Great-Square-and-winged-horse hand-winged-horse-and-Great-Square Pegasus-Great-Square-and-winged-horse-and-autumn-Pegasus pegasus-and-winged-horse-and-Great-Square surfaces under Pegasus-Great-Square-and-winged-horse-and-autumn-Pegasus October-and-November-autumn-zenith autumn-constellation-light. Sits at the modifier-and-cosmic end of the grid, parallel to cygnus and draco in usage.

Lagoon
noun

A shallow body of saltwater partially or fully enclosed by a barrier — coral atoll lagoons in the Pacific, Venice's Laguna Veneta, the Florida Keys' backcountry. The color refers to the average reflectance of a calm tropical lagoon at midday: a saturated, slightly muted blue-green with the optical clarity of shallow water over white sand. Brighter than reef, cooler than aquamarine, with the postcard weight of a Pacific atoll seen from above.

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.

#47bbd6
Original
#a9b5d8
Protanopia
#94a6d6
Deuteranopia
#00c5c3
Tritanopia
#a4a4a4
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
2.25:1
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
9.35:1

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
##47BBD6
Display P3
Display P3
color(display-p3 0.4101 0.7237 0.8263)
P3 has subtle headroomOKLCH chroma 0.109

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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