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Lively Lánsè

#19e9fe
Notes

Lively Lánsè (#19E9FE) 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 (186°, 99%, 55%) 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
#19e9fe
RGB
rgb(25, 233, 254)
HSL
hsl(186, 99%, 55%)
HWB
hwb(186 10% 0%)
OKLCH
oklch(85.4% 0.144 206.6)
HSV
hsv(186, 90%, 100%)
LAB
lab(84.81% -37.96 -23.10)
LCH
lch(84.81% 44.44 211.33)
CMYK
cmyk(90%, 8%, 0%, 0%)

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.

Lánsè
noun

The Chinese word for blue — combining lán (blue) and (color). Used for the blue of Ming-dynasty porcelain underglaze, lán-bù (denim), and the deep blue of imperial banners. The color refers to fresh-painted lán-bù cotton: a saturated, slightly cool deep blue with the matte finish of indigo-and-cotton.

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.

#19e9fe
Original
#d4dfff
Protanopia
#b8cbfe
Deuteranopia
#00f4ef
Tritanopia
#bebebe
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
1.49:1
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
14.13:1

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