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Bold Knossos

#8e48bc
Notes

Bold Knossos (#8E48BC) 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°, 46%, 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8e48bc
RGB
rgb(142, 72, 188)
HSL
hsl(276, 46%, 51%)
HWB
hwb(276 28% 26%)
OKLCH
oklch(54.1% 0.181 309.5)
HSV
hsv(276, 62%, 74%)
LAB
lab(44.26% 49.80 -49.46)
LCH
lch(44.26% 70.19 315.19)
CMYK
cmyk(24%, 62%, 0%, 26%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

Knossos
noun

Minoan Cretan palace-complex (occupied c. 1900–1370 BCE) — the legendary court of King Minos and a major Bronze-Age Tyrian purple production center supplying the Aegean trade network. Knossos color refers to a Knossos-period Minoan purpura-dyed fresco border: a saturated, slightly cool deep violet with the matte finish of multi-bath Hexaplex trunculus shellfish dye on lime-plaster wall painting.

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.

#8e48bc
Original
#1366c0
Protanopia
#396ab9
Deuteranopia
#885f7b
Tritanopia
#5f5f5f
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
5.52:1
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
3.80:1

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