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Bastioned Cynoglossum

#2a47a0
Notes

Bastioned Cynoglossum (#2A47A0) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (225°, 58%, 40%) 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
#2a47a0
RGB
rgb(42, 71, 160)
HSL
hsl(225, 58%, 40%)
HWB
hwb(225 16% 37%)
OKLCH
oklch(43.0% 0.149 266.5)
HSV
hsv(225, 74%, 63%)
LAB
lab(33.00% 21.26 -51.48)
LCH
lch(33.00% 55.70 292.44)
CMYK
cmyk(74%, 56%, 0%, 37%)

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.

Cynoglossum
noun

The genus CynoglossumChinese forget-me-not or hound's-tongue, biennial members of the borage family with deep-blue forget-me-not-style flowers in early summer. The color refers to a fresh C. amabile in May: a saturated, slightly cool deep blue with the matte finish of small five-petaled flowers.

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.

#2a47a0
Original
#0053a3
Protanopia
#00489e
Deuteranopia
#005d6c
Tritanopia
#474747
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).
AAAon White
8.38:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.51:1

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