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Smooth Gold Ocean

#78b5c6
Notes

Smooth Gold Ocean (#78B5C6) 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°, 41%, 62%) 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
#78b5c6
RGB
rgb(120, 181, 198)
HSL
hsl(193, 41%, 62%)
HWB
hwb(193 47% 22%)
OKLCH
oklch(73.8% 0.067 217.2)
P3
color(display-p3 0.5236 0.7035 0.7679)
HSV
hsv(193, 39%, 78%)
LAB
lab(70.26% -15.27 -14.83)
LCH
lch(70.26% 21.28 224.15)
CMYK
cmyk(39%, 9%, 0%, 22%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Gold
modifier

Old English gold, gold. As a color modifier, gold implies a precious-malleable-metal quality, the visual register of hand-beaten-and-rolled-gold hand-beaten-gold-leaf-and-coin-and-bar Egyptian-and-Italian-Renaissance hand-beaten-gold-leaf surfaces under Egyptian-and-Renaissance hand-beaten-gold-leaf treasury-light. Sits at the modifier-and-texture end of the grid, parallel to gilt and gloss 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.

#78b5c6
Original
#a9b1c7
Protanopia
#9da8c6
Deuteranopia
#59bbba
Tritanopia
#a9a9a9
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
2.28:1
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
9.22:1

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
##78B5C6
Display P3
Display P3
color(display-p3 0.5236 0.7035 0.7679)
Inside sRGBOKLCH chroma 0.067

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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