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Direct Heron

#4ecdf1
Notes

Direct Heron (#4ECDF1) 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 (193°, 85%, 63%) 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
#4ecdf1
RGB
rgb(78, 205, 241)
HSL
hsl(193, 85%, 63%)
HWB
hwb(193 31% 5%)
OKLCH
oklch(79.3% 0.121 220.3)
P3
color(display-p3 0.4505 0.7934 0.9292)
HSV
hsv(193, 68%, 95%)
LAB
lab(77.06% -23.80 -27.95)
LCH
lch(77.06% 36.72 229.59)
CMYK
cmyk(68%, 15%, 0%, 5%)

Etymology

Direct
adjective

From the Latin directus, straight — used as a color modifier since the eighteenth century for hues that read as straightforward and unambiguous. Direct red, direct green: moderate-to-high saturation combined with optical clarity. Sits at the crisp-bucket center alongside clear and frank.

Heron
noun

The family Ardeidae — particularly Ardea cinerea (gray heron) of European wetlands and Ardea herodias (great blue heron) of North America, whose plumage is dominated by saturated blue-gray. The color refers to a great blue heron in flight: a soft, slightly cool deep blue-gray with the matte finish of large wading-bird plumage.

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.

#4ecdf1
Original
#b7c8f3
Protanopia
#a0b7f1
Deuteranopia
#00d9d8
Tritanopia
#b5b5b5
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
1.85:1
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
11.33:1

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
##4ECDF1
Display P3
Display P3
color(display-p3 0.4505 0.7934 0.9292)
P3 has subtle headroomOKLCH chroma 0.121

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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