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Noble Brindisi

#a66ddf
Notes

Noble Brindisi (#A66DDF) is a true indigo 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 (270°, 64%, 65%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a66ddf
RGB
rgb(166, 109, 223)
HSL
hsl(270, 64%, 65%)
HWB
hwb(270 43% 13%)
OKLCH
oklch(64.3% 0.171 305.2)
HSV
hsv(270, 51%, 87%)
LAB
lab(56.46% 44.38 -49.86)
LCH
lch(56.46% 66.76 311.67)
CMYK
cmyk(26%, 51%, 0%, 13%)

Etymology

Noble
adjective

Latin nōbilis, well-known / illustrious — sharing root with gnōscere (to know). As a color modifier, noble implies a saturated-and-dignified-and-aristocratic quality, the deep-rich color of pre-modern European noble-class hereditary-aristocratic livery-and-armorial bearings. Sits at the bold-and-aristocratic end of the grid, parallel to aristocratic and highborn in usage.

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

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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.

#a66ddf
Original
#4a86e3
Protanopia
#5b88dc
Deuteranopia
#9d819c
Tritanopia
#818181
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).
AA Largeon White
3.57:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.87:1

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