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Earthyvioletdeepmuted

Warm Amethyst Crystal

#643c6f
Notes

Warm Amethyst Crystal (#643C6F) is a deep violet with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (287°, 30%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#643c6f
RGB
rgb(100, 60, 111)
HSL
hsl(287, 30%, 34%)
HWB
hwb(287 24% 56%)
OKLCH
oklch(42.5% 0.094 318.7)
HSV
hsv(287, 46%, 44%)
LAB
lab(32.01% 27.05 -22.53)
LCH
lch(32.01% 35.20 320.21)
CMYK
cmyk(10%, 46%, 0%, 56%)

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.

#643c6f
Original
#344971
Protanopia
#3f4d6e
Deuteranopia
#644350
Tritanopia
#484848
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).
AAAon White
8.69:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.42:1

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Canvas