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Bastioned Limonium

#3b4dd7
Notes

Bastioned Limonium (#3B4DD7) is a true blue with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (233°, 66%, 54%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3b4dd7
RGB
rgb(59, 77, 215)
HSL
hsl(233, 66%, 54%)
HWB
hwb(233 23% 16%)
OKLCH
oklch(49.7% 0.210 270.7)
P3
color(display-p3 0.2456 0.2999 0.8123)
HSV
hsv(233, 73%, 84%)
LAB
lab(39.82% 39.55 -72.63)
LCH
lch(39.82% 82.71 298.57)
CMYK
cmyk(73%, 64%, 0%, 16%)

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.

Limonium
noun

The genus Limoniumsea-lavender or statice, salt-tolerant coastal-marsh perennials with sprays of papery blue, purple, or white flower heads. The color refers to a fresh L. latifolium in late summer: a saturated, slightly cool deep blue-violet with the matte papery finish of dried-feeling flower heads.

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.

#3b4dd7
Original
#0065db
Protanopia
#0057d4
Deuteranopia
#00718b
Tritanopia
#535353
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).
AAon White
6.50:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.23:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##3B4DD7
Display P3
Display P3
color(display-p3 0.2456 0.2999 0.8123)
P3 has visible headroomOKLCH chroma 0.210

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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