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Disciplined Flock Lagoon

#3bb5d4
Notes

Disciplined Flock Lagoon (#3BB5D4) 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 (192°, 64%, 53%) 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
#3bb5d4
RGB
rgb(59, 181, 212)
HSL
hsl(192, 64%, 53%)
HWB
hwb(192 23% 17%)
OKLCH
oklch(72.0% 0.113 218.6)
P3
color(display-p3 0.3781 0.7001 0.8174)
HSV
hsv(192, 72%, 83%)
LAB
lab(68.55% -23.24 -25.30)
LCH
lch(68.55% 34.36 227.43)
CMYK
cmyk(72%, 15%, 0%, 17%)

Etymology

Disciplined
adjective

Latin disciplīna, teaching / training — past-participle of discipline. As a color modifier, disciplined implies a clear-and-controlled-and-careful quality where the hue carries the visual register of careful-edited-and-restrained design-decision. Sits at the crisp-and-orderly end of the grid, parallel to methodical and orderly in usage.

Flock
modifier

Latin floccus, tuft-of-wool. As a color modifier, flock implies a tuft-of-wool-and-flocked-paper quality, the visual register of Victorian-flocked-wallpaper-and-Tudor-flocked-velvet hand-applied-and-tufted flocked-wallpaper-and-velvet flock-and-tuft surfaces under Victorian-flocked-wallpaper-and-Tudor-flocked-velvet interior-decoration light. Sits at the modifier-and-texture end of the grid, parallel to fluff and tufted 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.

#3bb5d4
Original
#a1b0d6
Protanopia
#8ca1d4
Deuteranopia
#00bfbf
Tritanopia
#9d9d9d
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
2.40:1
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
8.75:1

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
##3BB5D4
Display P3
Display P3
color(display-p3 0.3781 0.7001 0.8174)
P3 has subtle headroomOKLCH chroma 0.113

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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