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Fiery Lesbos

#19e5fb
Notes

Fiery Lesbos (#19E5FB) 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°, 97%, 54%) 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
#19e5fb
RGB
rgb(25, 229, 251)
HSL
hsl(186, 97%, 54%)
HWB
hwb(186 10% 2%)
OKLCH
oklch(84.4% 0.142 207.3)
HSV
hsv(186, 90%, 98%)
LAB
lab(83.55% -37.03 -23.44)
LCH
lch(83.55% 43.82 212.33)
CMYK
cmyk(90%, 9%, 0%, 2%)

Etymology

Fiery
adjective

Old English fȳr, fire — adjectival suffix -y. As a color modifier, fiery implies a saturated-and-bright-flaming quality, the bright color of autumn-foliage fall-color and forge-furnace hot-iron emission. Sits at the bright-and-warm end of the grid, parallel to flaming and blazing in usage.

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.

#19e5fb
Original
#d0dcfc
Protanopia
#b4c8fb
Deuteranopia
#00f0ec
Tritanopia
#bbbbbb
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
1.54:1
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
13.64:1

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