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Plotted Acai

#816eb0
Notes

Plotted Acai (#816EB0) 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 (257°, 29%, 56%) places it in the muted 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
#816eb0
RGB
rgb(129, 110, 176)
HSL
hsl(257, 29%, 56%)
HWB
hwb(257 43% 31%)
OKLCH
oklch(58.3% 0.101 296.4)
P3
color(display-p3 0.4937 0.4341 0.6729)
HSV
hsv(257, 37%, 69%)
LAB
lab(50.63% 21.93 -32.46)
LCH
lch(50.63% 39.18 304.04)
CMYK
cmyk(27%, 37%, 0%, 31%)

Etymology

Plotted
adjective

Old English plot, small piece of ground — past-participle of plot. As a color modifier, plotted implies a clear-and-coordinate-mapped quality, the crisp color of Cartesian-and-graph-paper coordinate-plotted scientific-and-engineering data-visualization plot-line. Sits at the crisp-and-mapped end of the grid, parallel to mapped and surveyed in usage.

Acai
noun

Brazilian Portuguese for Euterpe oleracea — an Amazon-basin palm whose deep-purple-violet drupe was a quilombola and caboclo dietary staple before its 21st-century superfood commercialization. Acai color refers to a freshly pulped Euterpe oleracea drupe: a saturated, slightly cool deep blue-violet with the matte finish of anthocyanin-rich palm-fruit pulp. The Tupi-derived word entered English via Portuguese in the 1990s.

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.

#816eb0
Original
#5d79b3
Protanopia
#6078ae
Deuteranopia
#777987
Tritanopia
#777777
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
4.38:1
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
4.79:1

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
##816EB0
Display P3
Display P3
color(display-p3 0.4937 0.4341 0.6729)
P3 has subtle headroomOKLCH chroma 0.101

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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