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Earthyvioletdeepmuted

Crisp Amethyst Tide

#663f6f
Notes

Crisp Amethyst Tide (#663F6F) 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 (289°, 28%, 34%) places it in the muted 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
#663f6f
RGB
rgb(102, 63, 111)
HSL
hsl(289, 28%, 34%)
HWB
hwb(289 25% 56%)
OKLCH
oklch(43.3% 0.090 319.9)
HSV
hsv(289, 43%, 44%)
LAB
lab(32.98% 25.91 -20.99)
LCH
lch(32.98% 33.35 320.98)
CMYK
cmyk(8%, 43%, 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.

#663f6f
Original
#384b71
Protanopia
#434f6e
Deuteranopia
#674551
Tritanopia
#4b4b4b
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
8.38:1
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
2.51:1

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Canvas