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Animated Cascade

#21afe4
Notes

Animated Cascade (#21AFE4) 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°, 78%, 51%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#21afe4
RGB
rgb(33, 175, 228)
HSL
hsl(196, 78%, 51%)
HWB
hwb(196 13% 11%)
OKLCH
oklch(70.8% 0.134 230.1)
HSV
hsv(196, 86%, 89%)
LAB
lab(66.96% -17.33 -36.58)
LCH
lch(66.96% 40.47 244.65)
CMYK
cmyk(86%, 23%, 0%, 11%)

Etymology

Animated
adjective

Latin animātus, given-life — past-participle of animāre, derived from anima (soul, breath). As a color modifier, animated implies a saturated-and-life-given quality where the hue carries visual movement-and-vitality. Sits at the bright-and-active end of the grid, parallel to spirited and lively in usage.

Cascade
noun

A waterfall of moderate size — particularly the Cascade Range of waterfalls along the Pacific Northwest's Columbia River Gorge. Cascade color refers to the white-and-blue of falling water at Multnomah Falls: a soft, slightly cool pale blue-white with the optical complexity of mist-and-water in motion.

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.

#21afe4
Original
#94ade7
Protanopia
#7b9be3
Deuteranopia
#00bec1
Tritanopia
#959595
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
2.52:1
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
8.32:1

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