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Pellucid Bengal

#7578a4
Notes

Pellucid Bengal (#7578A4) is a true blue 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 (236°, 21%, 55%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#7578a4
RGB
rgb(117, 120, 164)
HSL
hsl(236, 21%, 55%)
HWB
hwb(236 46% 36%)
OKLCH
oklch(58.7% 0.067 281.1)
P3
color(display-p3 0.4609 0.4702 0.6300)
HSV
hsv(236, 29%, 64%)
LAB
lab(51.72% 9.19 -23.89)
LCH
lch(51.72% 25.59 291.04)
CMYK
cmyk(29%, 27%, 0%, 36%)

Etymology

Pellucid
adjective

Latin pellūcidus, transparent — derived from per-lūcēre (to shine through). As a color modifier, pellucid implies a clear-and-translucent quality where the hue reads with optical clarity and minimal turbidity. Sits at the crisp-and-clear end of the grid, parallel to lucid and translucent in usage.

Bengal
noun

Historical Indian region (modern West Bengal and Bangladesh) — the colonial-era epicenter of Indigofera tinctoria cultivation, where the British East India Company forced peasant cultivators (ryots) into the nij indigo system. Bengal color refers to a Bengali handloom kantha embroidered cotton dyed in neel: a saturated, slightly cool deep blue-violet with the matte finish of fermentation-vat indigo on hand-loomed cotton.

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.

#7578a4
Original
#6c7da6
Protanopia
#697aa3
Deuteranopia
#698087
Tritanopia
#7b7b7b
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
4.22:1
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
4.98:1

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
##7578A4
Display P3
Display P3
color(display-p3 0.4609 0.4702 0.6300)
Inside sRGBOKLCH chroma 0.067

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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