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Bastioned Tobi

#b22132
Notes

Bastioned Tobi (#B22132) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (353°, 69%, 41%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b22132
RGB
rgb(178, 33, 50)
HSL
hsl(353, 69%, 41%)
HWB
hwb(353 13% 30%)
OKLCH
oklch(49.8% 0.179 21.3)
HSV
hsv(353, 81%, 70%)
LAB
lab(39.22% 56.80 28.31)
LCH
lch(39.22% 63.46 26.50)
CMYK
cmyk(0%, 81%, 72%, 30%)

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.

Tobi
noun

Named for the tobi — the black kite (Milvus migrans) — the slightly muted red-brown of the bird's plumage and of the tobi-iro dye traditionally used in working-class Edo dress. The color refers to a freshly-dyed tobi-iro cotton: a soft, slightly muted red-brown with the matte finish of plant-and-iron mordant. Drier than rust, warmer than maroon.

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.

#b22132
Original
#4f4931
Protanopia
#72672d
Deuteranopia
#c40029
Tritanopia
#414141
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
6.65:1
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
3.16:1

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