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Rich Aronia

#742ba5
Notes

Rich Aronia (#742BA5) 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 (276°, 59%, 41%) 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
#742ba5
RGB
rgb(116, 43, 165)
HSL
hsl(276, 59%, 41%)
HWB
hwb(276 17% 35%)
OKLCH
oklch(45.7% 0.187 307.8)
HSV
hsv(276, 74%, 65%)
LAB
lab(34.31% 52.49 -52.04)
LCH
lch(34.31% 73.92 315.24)
CMYK
cmyk(30%, 74%, 0%, 35%)

Etymology

Rich
adjective

Old French riche, wealthy, abundant — applied to color since the medieval period for hues that read as plentiful in pigment. Rich red, rich brown: the implication is depth combined with saturation, a color that gives the eye more to absorb. Sits at the saturated mid-light corner of the engine's grid, slightly warmer than bold and deeper than vivid.

Aronia
noun

North American chokeberry (Aronia melanocarpa) — a Rosaceae shrub native to eastern North America whose deep-violet drupes are the most polyphenol-rich of any commonly cultivated berry. Aronia color refers to a freshly picked Aronia melanocarpa drupe-cluster: a saturated, slightly cool deep violet with the matte finish of anthocyanin-and-tannin-rich chokeberry. The genus name comes from the Greek aría, small fruit-bush.

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.

#742ba5
Original
#004ea8
Protanopia
#0051a2
Deuteranopia
#6c4866
Tritanopia
#434343
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
7.98:1
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
2.63:1

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