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Printed Sumer Ocean

#39dbe5
Notes

Printed Sumer Ocean (#39DBE5) 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 (183°, 77%, 56%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#39dbe5
RGB
rgb(57, 219, 229)
HSL
hsl(183, 77%, 56%)
HWB
hwb(183 22% 10%)
OKLCH
oklch(81.6% 0.128 201.3)
P3
color(display-p3 0.4359 0.8468 0.8888)
HSV
hsv(183, 75%, 90%)
LAB
lab(80.28% -36.75 -16.68)
LCH
lch(80.28% 40.36 204.41)
CMYK
cmyk(75%, 4%, 0%, 10%)

Etymology

Printed
adjective

Latin premere, to press — past-participle of print. As a color modifier, printed implies a clear-and-impressed-and-multiplied quality, the crisp color of Marimekko-and-Liberty-of-London hand-or-machine-printed textile-and-paper pattern-design. Sits at the crisp-and-printed end of the grid, parallel to stamped and etched in usage.

Sumer
modifier

Akkadian Šumeru, Sumer. As a color modifier, sumer implies an ancient-Mesopotamian-and-cuneiform quality, the visual register of Sumerian-Ur-and-Uruk hand-built ziggurat-and-cuneiform-tablet bronze-age Mesopotamian city-state surfaces under Sumerian-Mesopotamian Ur-and-Uruk bronze-age city-state sun-baked-mud-brick light. Sits at the modifier-and-cultural end of the grid, parallel to akkad and median in usage.

Ocean
noun

The body of saltwater that covers seventy percent of Earth's surface — a single connected mass divided by convention into Atlantic, Pacific, Indian, Southern, and Arctic. The color refers to the average reflectance of mid-depth temperate ocean: a saturated, slightly green-shifted deep blue with the optical depth of a body of water that absorbs all light below the photic zone. Deeper than mediterranean, cooler than peacock.

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.

#39dbe5
Original
#cad1e6
Protanopia
#b2c0e6
Deuteranopia
#00e3de
Tritanopia
#b9b9b9
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
1.69:1
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
12.44:1

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
##39DBE5
Display P3
Display P3
color(display-p3 0.4359 0.8468 0.8888)
P3 has subtle headroomOKLCH chroma 0.128

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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