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Bastioned Sonora

#eb521f
Notes

Bastioned Sonora (#EB521F) is a true orange with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (15°, 84%, 52%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#eb521f
RGB
rgb(235, 82, 31)
HSL
hsl(15, 84%, 52%)
HWB
hwb(15 12% 8%)
OKLCH
oklch(64.1% 0.198 37.1)
HSV
hsv(15, 87%, 92%)
LAB
lab(55.89% 56.95 57.94)
LCH
lch(55.89% 81.24 45.49)
CMYK
cmyk(0%, 65%, 87%, 8%)

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.

Sonora
noun

The Sonoran Desert in northwestern Mexico and the southwestern United States — the giant saguaros, ocotillo, and the deep orange-brown of weathered desert basalt. Sonora refers to a Sonoran sunset over the saguaro forest: a saturated, slightly muted deep orange with the matte finish of dust-suspended desert light. Drier than Mojave, warmer than rust.

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.

#eb521f
Original
#7f7014
Protanopia
#a59314
Deuteranopia
#ff2149
Tritanopia
#6f6f6f
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
3.65:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.76:1

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