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Obsidian Mauve

#641473
Notes

Obsidian Mauve (#641473) is a deep violet 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 (291°, 70%, 26%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#641473
RGB
rgb(100, 20, 115)
HSL
hsl(291, 70%, 26%)
HWB
hwb(291 8% 55%)
OKLCH
oklch(37.5% 0.159 320.6)
P3
color(display-p3 0.3592 0.1061 0.4351)
HSV
hsv(291, 83%, 45%)
LAB
lab(25.10% 47.31 -36.03)
LCH
lch(25.10% 59.47 322.71)
CMYK
cmyk(13%, 83%, 0%, 55%)

Etymology

Obsidian
noun

Volcanic glass — molten rhyolite cooled too quickly to crystallize. Mined since the Stone Age for blade-edges (sharper than surgical steel) and ground into mirrors by the Aztec priesthood for divination. The color refers to a polished obsidian flake from Mount Hekla or Glass Buttes, Oregon: a deep, slightly blue-shifted black with the high-gloss conchoidal fracture of natural glass. Cooler than onyx, glossier than coal.

Mauve
noun

The first synthetic aniline dye — an accidental product of William Perkin's 1856 attempt to synthesize quinine, which yielded a stable purple instead. Mauve (French for mallow) became the chemical-industry breakthrough that reshaped textile coloring. The color refers to a freshly mauve-dyed silk: a soft, slightly red-shifted pale purple with the slight luster of synthetic-dyed natural fiber. Lighter than violet, warmer than lilac, with the industrial-history weight of the pigment that founded modern chemistry.

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.

#641473
Original
#003676
Protanopia
#1f3e71
Deuteranopia
#652944
Tritanopia
#2c2c2c
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
11.11:1
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
1.89:1

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
##641473
Display P3
Display P3
color(display-p3 0.3592 0.1061 0.4351)
P3 has subtle headroomOKLCH chroma 0.159

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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