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Lively Lesbos

#42ecf4
Notes

Lively Lesbos (#42ECF4) 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 (183°, 89%, 61%) 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
#42ecf4
RGB
rgb(66, 236, 244)
HSL
hsl(183, 89%, 61%)
HWB
hwb(183 26% 4%)
OKLCH
oklch(86.3% 0.133 199.7)
P3
color(display-p3 0.4774 0.9127 0.9478)
HSV
hsv(183, 73%, 96%)
LAB
lab(85.84% -39.26 -16.24)
LCH
lch(85.84% 42.48 202.47)
CMYK
cmyk(73%, 3%, 0%, 4%)

Etymology

Lively
adjective

An adjectival form of life — used as a color word since the seventeenth century for hues that read as energetic. Lively coral, lively chartreuse: the implication is saturation combined with optical liveliness, the slight visual restlessness of a color that feels animated. Sits at the bright-bucket center.

Lesbos
noun

The Greek island in the eastern Aegean — and the saturated deep blue of Lesbos's Petrified Forest coastline and Sigri harbor. Lesbos color refers to the harbor water at sunset: a saturated, slightly cool deep blue with the optical depth of warm Aegean coastal 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

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.

#42ecf4
Original
#dbe1f5
Protanopia
#c1cff5
Deuteranopia
#00f5ee
Tritanopia
#c8c8c8
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
1.44:1
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
14.54:1

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
##42ECF4
Display P3
Display P3
color(display-p3 0.4774 0.9127 0.9478)
P3 has subtle headroomOKLCH chroma 0.133

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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