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Bastioned Slush Crimson

#a82223
Notes

Bastioned Slush Crimson (#A82223) 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 (360°, 66%, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a82223
RGB
rgb(168, 34, 35)
HSL
hsl(360, 66%, 40%)
HWB
hwb(360 13% 34%)
OKLCH
oklch(47.8% 0.170 26.2)
P3
color(display-p3 0.6054 0.1844 0.1647)
HSV
hsv(360, 80%, 66%)
LAB
lab(37.10% 52.97 34.37)
LCH
lch(37.10% 63.14 32.98)
CMYK
cmyk(0%, 80%, 79%, 34%)

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.

Slush
modifier

Imitative origin, half-melted-snow. As a color modifier, slush implies a half-melted-snow-and-grey-pavement quality, the visual register of city-pavement-and-thaw-slush hand-half-melted-snow-and-grey-pavement city-pavement-and-thaw-slush-and-Boston-Brooklyn-thaw slush-and-half-melted-snow-and-grey-pavement surfaces under city-pavement-and-thaw-slush-and-Boston-Brooklyn-thaw Boston-and-Brooklyn-and-Edinburgh-thaw urban-thaw-light. Sits at the modifier-and-weather end of the grid, parallel to thaw and flurry in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#a82223
Original
#4c4521
Protanopia
#6d621d
Deuteranopia
#b90024
Tritanopia
#3f3f3f
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
7.20:1
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
2.92:1

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
##A82223
Display P3
Display P3
color(display-p3 0.6054 0.1844 0.1647)
P3 has subtle headroomOKLCH chroma 0.170

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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