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Senatorial Tyrian

#81247b
Notes

Senatorial Tyrian (#81247B) is a deep violet with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (304°, 56%, 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
#81247b
RGB
rgb(129, 36, 123)
HSL
hsl(304, 56%, 32%)
HWB
hwb(304 14% 49%)
OKLCH
oklch(44.0% 0.162 330.7)
HSV
hsv(304, 72%, 51%)
LAB
lab(32.61% 49.78 -28.84)
LCH
lch(32.61% 57.53 329.92)
CMYK
cmyk(0%, 72%, 5%, 49%)

Etymology

Senatorial
adjective

Latin senātōrius, of the senator — adjectival suffix. As a color modifier, senatorial implies a saturated-and-aristocratic-and-Roman-Republic quality, the deep-rich color of Roman-Senate toga praetexta purple-bordered ceremonial-citizen-class livery. Sits at the bold-and-aristocratic end of the grid, parallel to patrician and imperial.

Tyrian
noun

Historical Phoenician Tyrian purple (purpura) — derived from the Bolinus brandaris and Hexaplex trunculus sea-snail hypobranchial-gland secretion, processed at industrial scale on the Lebanese coast from 1500 BCE to 1453 CE. Tyrian color refers to a freshly Tyrian-purple-dyed Roman toga picta: a saturated, slightly cool deep violet with the matte finish of multi-bath Murex shellfish-dye on woolen toga cloth.

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.

#81247b
Original
#1c457d
Protanopia
#405179
Deuteranopia
#862f4d
Tritanopia
#3e3e3e
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
8.50:1
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
2.47:1

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