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Reinforced Pallium

#681d90
Notes

Reinforced Pallium (#681D90) is a deep indigo 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 (279°, 66%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#681d90
RGB
rgb(104, 29, 144)
HSL
hsl(279, 66%, 34%)
HWB
hwb(279 11% 44%)
OKLCH
oklch(41.1% 0.178 310.3)
P3
color(display-p3 0.3750 0.1357 0.5441)
HSV
hsv(279, 80%, 56%)
LAB
lab(28.99% 51.05 -47.95)
LCH
lch(28.99% 70.04 316.80)
CMYK
cmyk(28%, 80%, 0%, 44%)

Etymology

Reinforced
adjective

Latin re- plus inforce — past-participle of reinforce. As a color modifier, reinforced implies a saturated-and-doubled-up-and-strengthened quality where the hue carries layered pigmentation for maximum visual presence. Sits at the bold-and-fortified end of the grid, parallel to fortified and buttressed.

Pallium
noun

Roman cloak — and the medieval pallium of the Pope, a deep-violet wool stole worn as a Petrine symbol of papal authority. Pallium color refers to a 12th-century Lateran-period papal pallium: a saturated, slightly cool deep violet with the matte finish of multi-bath Tyrian shellfish-dye on hand-spun ecclesiastical wool. The Latin word pallium also gave English pall and palliative.

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.

#681d90
Original
#004193
Protanopia
#00458e
Deuteranopia
#623a56
Tritanopia
#353535
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
9.69:1
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
2.17:1

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
##681D90
Display P3
Display P3
color(display-p3 0.3750 0.1357 0.5441)
P3 has subtle headroomOKLCH chroma 0.178

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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