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Bastioned Azzurro

#0487ee
Notes

Bastioned Azzurro (#0487EE) is a true azure 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 (206°, 97%, 47%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0487ee
RGB
rgb(4, 135, 238)
HSL
hsl(206, 97%, 47%)
HWB
hwb(206 2% 7%)
OKLCH
oklch(61.9% 0.182 251.6)
HSV
hsv(206, 98%, 93%)
LAB
lab(55.61% 7.99 -60.07)
LCH
lch(55.61% 60.60 277.58)
CMYK
cmyk(98%, 43%, 0%, 7%)

Etymology

Bastioned
adjective

Italian bastionato, fortified-with-bastions — past-participle of bastion, derived from bastia (fortified-tower). As a color modifier, bastioned implies a saturated-and-fortified-and-projecting quality, the deep-rich color of Vauban-period military-fortress star-fort projecting-bastion stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and buttressed.

Azzurro
noun

The Italian word for sky-blue — used in Costa Azzurra (Italian Riviera) and the saturated azzurro Italia of the Italian national football team's jersey. The color refers to the official Italian football kit: a saturated, slightly cool deep blue with the matte finish of polyester athletic fabric. The Italian cousin of azure.

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.

#0487ee
Original
#508ff2
Protanopia
#1f7dec
Deuteranopia
#00a0af
Tritanopia
#737373
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).
AA Largeon White
3.68:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.71:1

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