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Praetorian Brindisi

#ad37cb
Notes

Praetorian Brindisi (#AD37CB) is a true 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 (288°, 59%, 51%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#ad37cb
RGB
rgb(173, 55, 203)
HSL
hsl(288, 59%, 51%)
HWB
hwb(288 22% 20%)
OKLCH
oklch(57.2% 0.228 318.6)
P3
color(display-p3 0.6266 0.2498 0.7697)
HSV
hsv(288, 73%, 80%)
LAB
lab(46.88% 67.02 -53.72)
LCH
lch(46.88% 85.89 321.28)
CMYK
cmyk(15%, 73%, 0%, 20%)

Etymology

Praetorian
adjective

Latin praetōriānus, of the praetor — adjectival suffix, referring to the Roman-Imperial elite guard-cohorts. As a color modifier, praetorian implies a saturated-and-elite-and-imperial-guard quality, the deep-rich color of Roman-Praetorian-Guard elite-imperial-bodyguard scarlet-tunic-and-bronze-armor military-formation. Sits at the bold-and-formal end of the grid, parallel to spartan and imperial.

Brindisi
noun

Italian Adriatic port city — once the Roman Brundisium, terminus of the Via Appia, and a major Phoenician-and-Roman purpura shellfish-dye production center. Brindisi color refers to a Brindisi-dyed Roman toga praetexta with its purple-edged border: a saturated, slightly cool deep violet with the matte finish of multi-bath murex-shellfish dye on multi-rolled woolen toga fabric.

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.

#ad37cb
Original
#0068cf
Protanopia
#3f73c8
Deuteranopia
#ac557e
Tritanopia
#5b5b5b
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).
AAon White
5.02:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.19:1

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
##AD37CB
Display P3
Display P3
color(display-p3 0.6266 0.2498 0.7697)
P3 has visible headroomOKLCH chroma 0.228

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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