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Splashy Tideway

#37cdf2
Notes

Splashy Tideway (#37CDF2) is a true cyan with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (192°, 88%, 58%) 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
#37cdf2
RGB
rgb(55, 205, 242)
HSL
hsl(192, 88%, 58%)
HWB
hwb(192 22% 5%)
OKLCH
oklch(78.8% 0.130 218.9)
HSV
hsv(192, 77%, 95%)
LAB
lab(76.61% -26.27 -29.23)
LCH
lch(76.61% 39.30 228.05)
CMYK
cmyk(77%, 15%, 0%, 5%)

Etymology

Splashy
adjective

Imitative-onomatopoeic origin — adjectival suffix -y, evoking the sound of liquid impact. As a color modifier, splashy implies a saturated-and-attention-grabbing-and-bold quality, the bright color of Pop-Art-and-1950s-Tiki mid-century-modern showy-decor advertising-and-display. Sits at the bright-and-flamboyant end of the grid, parallel to showy and flamboyant in usage.

Tideway
noun

A tidal river channel — particularly the tidal Thames between London Bridge and Teddington Lock, the historical Tideway of London's Thames-side commerce. Tideway color refers to mid-tide Thames at Greenwich on a clear day: a soft, slightly cool deep blue-green with the optical complexity of tidal-mixed brackish water.

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.

#37cdf2
Original
#b6c7f4
Protanopia
#9db5f2
Deuteranopia
#00d9d9
Tritanopia
#b0b0b0
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
1.88:1
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
11.18:1

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