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Velvet Murex

#3b0c48
Notes

Velvet Murex (#3B0C48) 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 (287°, 71%, 16%) 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
#3b0c48
RGB
rgb(59, 12, 72)
HSL
hsl(287, 71%, 16%)
HWB
hwb(287 5% 72%)
OKLCH
oklch(26.9% 0.110 317.8)
HSV
hsv(287, 83%, 28%)
LAB
lab(13.60% 32.26 -26.27)
LCH
lch(13.60% 41.61 320.84)
CMYK
cmyk(18%, 83%, 0%, 72%)

Etymology

Velvet
noun

A short-pile woven fabric — silk, cotton, or rayon — whose densely packed vertical fibers absorb almost all incident light, producing a deeper black than the dye alone could give. The color refers to a black silk velvet: a deep, slightly muted black with the velvet's signature optical depth and the directional shading that distinguishes it from any flat fabric. Cooler than sable, deeper than ink.

Murex
noun

Bolinus brandaris and Hexaplex trunculus — the two principal Mediterranean sea-snail genera whose hypobranchial-gland secretion was processed into Tyrian purple dye for two-and-a-half millennia. Murex color refers to a freshly Murex-dye-bath-emerged Phoenician trade-textile: a saturated, slightly cool deep violet with the matte finish of multi-bath shellfish-dye on hand-loomed Levantine wool. The Latin murex gives English murexide, a synthetic violet-red dye.

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

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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.

#3b0c48
Original
#00204a
Protanopia
#0e2447
Deuteranopia
#3b1929
Tritanopia
#1a1a1a
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
15.76:1
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
1.33:1

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