#646D78

RGB 100, 109, 120

Values

Hex#646D78

RGB100, 109, 120

HSL213°, 9%, 43%

On White5.25:1

On Black4:1

#F3F2F1 background

#1F2310 ink

#646D78 accent

#645FAB support

#AA9492 neutral

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Use these colors:

Background: #F3F2F1 (background)
Ink: #1F2310 (ink)
Accent: #646D78 (accent)
Support: #645FAB (support)
Neutral: #AA9492 (neutral)

Build a design system around this color.