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Fortified Jiang

#a31b4e
Notes

Fortified Jiang (#A31B4E) is a true magenta with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (338°, 72%, 37%) 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
#a31b4e
RGB
rgb(163, 27, 78)
HSL
hsl(338, 72%, 37%)
HWB
hwb(338 11% 36%)
OKLCH
oklch(47.3% 0.172 5.2)
P3
color(display-p3 0.5866 0.1631 0.3063)
HSV
hsv(338, 83%, 64%)
LAB
lab(36.22% 55.92 5.99)
LCH
lch(36.22% 56.24 6.12)
CMYK
cmyk(0%, 83%, 52%, 36%)

Etymology

Fortified
adjective

Latin fortificāre, to make strong — past-participle of fortify. As a color modifier, fortified implies a saturated-and-strengthened-and-defensive quality, the deep-rich color of Vauban-style military-fortification stone-and-earth rampart-and-bastion architecture. Sits at the bold-and-fortified end of the grid, parallel to bastioned and armored.

Jiang
noun

A deep crimson historical Chinese color — used in the jiangcao (deep-crimson) silks of Tang-dynasty court robes and the lacquer of Han-period burial chambers. The color refers to a jiang-dyed silk in the Forbidden City collection: a deep, slightly cool dark red with the matte finish of multi-bath dyeing. Deeper than hong, cooler than karakurenai.

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.

#a31b4e
Original
#40444f
Protanopia
#645f4b
Deuteranopia
#b20032
Tritanopia
#3c3c3c
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
7.44:1
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
2.82:1

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
##A31B4E
Display P3
Display P3
color(display-p3 0.5866 0.1631 0.3063)
P3 has subtle headroomOKLCH chroma 0.172

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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