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Resounding Knossos

#a237d2
Notes

Resounding Knossos (#A237D2) is a true violet 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 (281°, 63%, 52%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a237d2
RGB
rgb(162, 55, 210)
HSL
hsl(281, 63%, 52%)
HWB
hwb(281 22% 18%)
OKLCH
oklch(56.2% 0.230 312.9)
P3
color(display-p3 0.5873 0.2451 0.7952)
HSV
hsv(281, 74%, 82%)
LAB
lab(45.73% 66.22 -59.70)
LCH
lch(45.73% 89.16 317.96)
CMYK
cmyk(23%, 74%, 0%, 18%)

Etymology

Resounding
adjective

Latin resonāre, to echo back — present-participle of resound. As a color modifier, resounding implies a saturated-and-echoing-and-imposing quality where the hue reverberates visually like a cathedral-bell ring. Sits at the bold-and-resonant end of the grid, parallel to resonant and booming in usage.

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

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.

#a237d2
Original
#0067d6
Protanopia
#256fcf
Deuteranopia
#9d5a82
Tritanopia
#595959
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
5.23:1
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
4.01:1

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
##A237D2
Display P3
Display P3
color(display-p3 0.5873 0.2451 0.7952)
P3 has visible headroomOKLCH chroma 0.230

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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