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Bastioned Asmān

#347fd8
Notes

Bastioned Asmān (#347FD8) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (213°, 68%, 53%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#347fd8
RGB
rgb(52, 127, 216)
HSL
hsl(213, 68%, 53%)
HWB
hwb(213 20% 15%)
OKLCH
oklch(59.5% 0.155 254.8)
HSV
hsv(213, 76%, 85%)
LAB
lab(52.80% 7.60 -52.21)
LCH
lch(52.80% 52.76 278.29)
CMYK
cmyk(76%, 41%, 0%, 15%)

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.

Asmān
noun

The Persian word for sky or heaven — used in Persian poetry for the saturated blue of Iranian summer sky and the asmānī glaze of Persian tile. The color refers to asmānī-glazed Persian tile: a saturated, slightly cool deep blue with the high gloss of fired ceramic. The Iranian cousin of sky.

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.

#347fd8
Original
#5486dc
Protanopia
#3777d6
Deuteranopia
#0094a1
Tritanopia
#757575
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
4.06:1
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
5.17:1

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