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Pure Murex

#891a8a
Notes

Pure Murex (#891A8A) 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 (299°, 68%, 32%) 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
#891a8a
RGB
rgb(137, 26, 138)
HSL
hsl(299, 68%, 32%)
HWB
hwb(299 10% 46%)
OKLCH
oklch(45.4% 0.189 327.7)
HSV
hsv(299, 81%, 54%)
LAB
lab(33.76% 57.35 -36.28)
LCH
lch(33.76% 67.86 327.68)
CMYK
cmyk(1%, 81%, 0%, 46%)

Etymology

Pure
adjective

Latin purus, clean, unmixed — applied to color since antiquity for hues that contain only one pigment without dilution by white, black, or another color. Pure red is the textbook ideal: high saturation, mid lightness, no shift. Sits at the bold-bucket center, parallel to true and strong.

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

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.

#891a8a
Original
#00468d
Protanopia
#3a5487
Deuteranopia
#8d2e53
Tritanopia
#3a3a3a
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
8.14:1
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
2.58:1

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