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Practical Juno Lagoon

#36c4e2
Notes

Practical Juno Lagoon (#36C4E2) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (190°, 75%, 55%) 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
#36c4e2
RGB
rgb(54, 196, 226)
HSL
hsl(190, 75%, 55%)
HWB
hwb(190 21% 11%)
OKLCH
oklch(76.0% 0.122 215.6)
P3
color(display-p3 0.3935 0.7579 0.8720)
HSV
hsv(190, 76%, 89%)
LAB
lab(73.38% -26.95 -25.55)
LCH
lch(73.38% 37.14 223.47)
CMYK
cmyk(76%, 13%, 0%, 11%)

Etymology

Practical
adjective

Greek praktikós, practical — adjectival suffix -al. As a color modifier, practical implies a clear-and-purpose-fit-and-everyday quality where the hue carries the visual register of Shaker-and-Quaker utilitarian-and-functional everyday-life craft. Sits at the crisp-and-functional end of the grid, parallel to functional and workmanlike in usage.

Juno
modifier

Latin Juno, Roman-queen-of-gods. As a color modifier, juno implies an asteroid-and-queen-of-gods quality, the visual register of Juno-asteroid-and-Roman-queen hand-asteroid-and-queen-of-gods Juno-asteroid-and-Roman-queen-and-Jupiter-mission juno-and-asteroid-and-queen-of-gods surfaces under Juno-asteroid-and-Roman-queen-and-Jupiter-mission asteroid-belt-and-Roman-temple ancient-pantheon-light. Sits at the modifier-and-cosmic end of the grid, parallel to ceres and vesta 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.

#36c4e2
Original
#afbee4
Protanopia
#98ade2
Deuteranopia
#00cfcd
Tritanopia
#a8a8a8
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
2.07:1
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
10.15:1

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
##36C4E2
Display P3
Display P3
color(display-p3 0.3935 0.7579 0.8720)
P3 has subtle headroomOKLCH chroma 0.122

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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