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Showy Echium

#17e0ff
Notes

Showy Echium (#17E0FF) 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 (188°, 100%, 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
#17e0ff
RGB
rgb(23, 224, 255)
HSL
hsl(188, 100%, 55%)
HWB
hwb(188 9% 0%)
OKLCH
oklch(83.3% 0.143 212.6)
HSV
hsv(188, 91%, 100%)
LAB
lab(82.22% -33.52 -27.57)
LCH
lch(82.22% 43.41 219.44)
CMYK
cmyk(91%, 12%, 0%, 0%)

Etymology

Showy
adjective

Old English scēawian, to look at — adjectival suffix -y. As a color modifier, showy implies a saturated-and-attention-grabbing quality, the bright color of Las-Vegas-and-Broadway neon-and-marquee theatrical-display lighting. Sits at the bright-and-flamboyant end of the grid, parallel to flamboyant and splashy in usage.

Echium
noun

The genus Echium — Mediterranean and Macaronesian biennials with tall deep-blue flower spikes. E. vulgare (viper's bugloss) covers European chalk grasslands; E. wildpretii of Tenerife produces three-meter spires. The color refers to fresh E. vulgare in flower: a saturated, slightly cool deep blue-violet.

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

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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.

#17e0ff
Original
#c9d8ff
Protanopia
#adc4ff
Deuteranopia
#00ecea
Tritanopia
#b8b8b8
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
1.60:1
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
13.14:1

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