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Unblemished Caribbean

#33b1dd
Notes

Unblemished Caribbean (#33B1DD) 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 (196°, 71%, 53%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#33b1dd
RGB
rgb(51, 177, 221)
HSL
hsl(196, 71%, 53%)
HWB
hwb(196 20% 13%)
OKLCH
oklch(71.2% 0.123 226.5)
P3
color(display-p3 0.3580 0.6844 0.8493)
HSV
hsv(196, 77%, 87%)
LAB
lab(67.55% -19.19 -31.80)
LCH
lch(67.55% 37.15 238.89)
CMYK
cmyk(77%, 20%, 0%, 13%)

Etymology

Unblemished
adjective

Old French blesmir, to wound — negative-prefix un- plus past-participle of blemish. As a color modifier, unblemished implies a clear-and-flawless quality where the hue carries no defect or imperfection. Sits at the crisp-and-clean end of the grid, parallel to pristine and spotless in usage.

Caribbean
noun

The Caribbean Sea — the tropical basin between the Gulf of Mexico and the Atlantic, ringed by Cuba, Hispaniola, the Lesser Antilles, and the Central American mainland. The color refers to mid-depth Caribbean water on a sunny day: a saturated, slightly muted blue-green with the optical complexity of pure water filtered through coral sand. Cooler than turquoise, warmer than azure, with the postcard weight of a sea named for its indigenous people.

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.

#33b1dd
Original
#99aedf
Protanopia
#839ddc
Deuteranopia
#00bebf
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
2.48:1
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
8.47:1

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
##33B1DD
Display P3
Display P3
color(display-p3 0.3580 0.6844 0.8493)
P3 has subtle headroomOKLCH chroma 0.123

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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