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Warm Ave Lagoon

#39b0d0
Notes

Warm Ave Lagoon (#39B0D0) 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°, 62%, 52%) 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
#39b0d0
RGB
rgb(57, 176, 208)
HSL
hsl(193, 62%, 52%)
HWB
hwb(193 22% 18%)
OKLCH
oklch(70.5% 0.112 219.8)
P3
color(display-p3 0.3667 0.6808 0.8015)
HSV
hsv(193, 73%, 82%)
LAB
lab(66.88% -22.21 -25.68)
LCH
lch(66.88% 33.95 229.14)
CMYK
cmyk(73%, 15%, 0%, 18%)

Etymology

Warm
adjective

Old English wearm, of moderate heat — used as a color modifier since the medieval period for hues that read as containing red, orange, or yellow undertones. Warm gray, warm white: not necessarily a temperature, but the optical impression of a slight red-orange shift. Sits across the crisp and neutral buckets.

Ave
modifier

Latin ave, hail-or-greeting. As a color modifier, ave implies a Latin-greeting-and-Ave-Maria-and-Ave-Caesar quality, the visual register of Ave-Maria-and-Ave-Caesar-greeting hand-Latin-greeting-and-Ave-Maria-and-Ave-Caesar Ave-Maria-and-Ave-Caesar-greeting-and-Catholic-prayer-and-Roman-salute ave-and-Latin-greeting surfaces under Ave-Maria-and-Ave-Caesar-greeting-and-Catholic-prayer-and-Roman-salute Roman-arena-and-Catholic-liturgy hailing-greeting-light. Sits at the modifier-and-Latin end of the grid, parallel to salve and pax 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.

#39b0d0
Original
#9cabd2
Protanopia
#889cd0
Deuteranopia
#00bbba
Tritanopia
#999999
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
##39B0D0
Display P3
Display P3
color(display-p3 0.3667 0.6808 0.8015)
P3 has subtle headroomOKLCH chroma 0.112

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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