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Refreshing Titan Lagoon

#33b1d1
Notes

Refreshing Titan Lagoon (#33B1D1) 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°, 63%, 51%) 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
#33b1d1
RGB
rgb(51, 177, 209)
HSL
hsl(192, 63%, 51%)
HWB
hwb(192 20% 18%)
OKLCH
oklch(70.7% 0.115 219.1)
P3
color(display-p3 0.3580 0.6844 0.8054)
HSV
hsv(192, 76%, 82%)
LAB
lab(67.09% -23.12 -25.92)
LCH
lch(67.09% 34.73 228.27)
CMYK
cmyk(76%, 15%, 0%, 18%)

Etymology

Refreshing
adjective

Old French refreschir, to make fresh again — present-participle of refresh. As a color modifier, refreshing implies a clear-and-cool-and-revitalizing quality, the crisp color of Cornish-coast and Hebridean-island fresh-sea-air-and-cool-water revitalization. Sits at the crisp-and-cool end of the grid, parallel to fresh and bracing in usage.

Titan
modifier

Greek Τιτάν, primeval-Titan-or-Saturn-moon. As a color modifier, titan implies a Saturn-moon-and-methane-haze-and-primeval quality, the visual register of Saturn-moon-Titan-and-Cassini-Huygens hand-Saturn-moon-and-methane-haze-and-primeval Saturn-moon-Titan-and-Cassini-Huygens-and-Kraken-Mare titan-and-Saturn-moon-and-methane-haze surfaces under Saturn-moon-Titan-and-Cassini-Huygens-and-Kraken-Mare orange-haze-and-cryo-volcano-and-methane-lake outer-system-light. Sits at the modifier-and-cosmic end of the grid, parallel to saturn and neptune 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.

#33b1d1
Original
#9dacd3
Protanopia
#889dd1
Deuteranopia
#00bcbb
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
2.51:1
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
8.35:1

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
##33B1D1
Display P3
Display P3
color(display-p3 0.3580 0.6844 0.8054)
P3 has subtle headroomOKLCH chroma 0.115

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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