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Tidy Whitsundays

#33cdc1
Notes

Tidy Whitsundays (#33CDC1) 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 (175°, 61%, 50%) 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
#33cdc1
RGB
rgb(51, 205, 193)
HSL
hsl(175, 61%, 50%)
HWB
hwb(175 20% 20%)
OKLCH
oklch(76.9% 0.124 187.0)
HSV
hsv(175, 75%, 80%)
LAB
lab(74.96% -41.29 -5.32)
LCH
lch(74.96% 41.63 187.34)
CMYK
cmyk(75%, 0%, 6%, 20%)

Etymology

Tidy
adjective

Old English tidig, timely — drifted in modern English to mean neat, orderly. Used as a color modifier for hues that read as composed and unfussy. Tidy beige, tidy gray: moderate saturation combined with optical neatness. Sits at the crisp-bucket alongside plain and modest.

Whitsundays
noun

The Australian archipelago in the central Great Barrier Reef — and the saturated turquoise of Whitehaven Beach's silica-sand-and-tidal-water boundary. Whitsundays refers to Hill Inlet at Whitehaven: a saturated, slightly cool deep blue-green with the optical complexity of tidal water swirling through pure silica sand.

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

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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.

#33cdc1
Original
#c2c2c1
Protanopia
#adb2c2
Deuteranopia
#00d2c9
Tritanopia
#ababab
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
1.97:1
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
10.64:1

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