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Bold Amethyst

#ac18a2
Notes

Bold Amethyst (#AC18A2) is a true violet with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (304°, 76%, 38%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#ac18a2
RGB
rgb(172, 24, 162)
HSL
hsl(304, 76%, 38%)
HWB
hwb(304 9% 33%)
OKLCH
oklch(52.4% 0.223 331.5)
P3
color(display-p3 0.6188 0.1622 0.6153)
HSV
hsv(304, 86%, 67%)
LAB
lab(41.27% 68.56 -38.58)
LCH
lch(41.27% 78.67 330.64)
CMYK
cmyk(0%, 86%, 6%, 33%)

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.

Amethyst
noun

A purple variety of quartz, colored by iron impurities and irradiation — the gem of February birthdays, the bishop's ring stone, the bowl of Roman wine cups (the Greeks believed it prevented drunkenness, and the name amethystos means not drunk). The color refers to a polished amethyst cabochon: a saturated, slightly red-shifted deep purple with the gem's signature internal life. Cooler than orchid, deeper than lilac.

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.

#ac18a2
Original
#0055a5
Protanopia
#4e689f
Deuteranopia
#b33060
Tritanopia
#414141
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
6.16:1
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
3.41:1

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
##AC18A2
Display P3
Display P3
color(display-p3 0.6188 0.1622 0.6153)
P3 has visible headroomOKLCH chroma 0.223

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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