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Bastioned Squash

#c64e1b
Notes

Bastioned Squash (#C64E1B) 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 (18°, 76%, 44%) 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
#c64e1b
RGB
rgb(198, 78, 27)
HSL
hsl(18, 76%, 44%)
HWB
hwb(18 11% 22%)
OKLCH
oklch(57.7% 0.165 40.5)
P3
color(display-p3 0.7207 0.3361 0.1724)
HSV
hsv(18, 86%, 78%)
LAB
lab(48.93% 45.59 51.27)
LCH
lch(48.93% 68.61 48.35)
CMYK
cmyk(0%, 61%, 86%, 22%)

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.

Squash
noun

The English name for Cucurbita, from the Algonquian askutasquasheaten raw. The color refers to the orange flesh of a butternut, kabocha, or honeynut: a warm, slightly muted orange with the matte surface of cooked vegetable. Earthier than pumpkin, less saturated than tangerine, with the autumn weight of a root cellar in October.

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.

#c64e1b
Original
#716311
Protanopia
#8e7e14
Deuteranopia
#da2f45
Tritanopia
#646464
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
4.66:1
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
4.51:1

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
##C64E1B
Display P3
Display P3
color(display-p3 0.7207 0.3361 0.1724)
P3 has subtle headroomOKLCH chroma 0.165

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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