#645EB5

RGB 100, 94, 181

Values

Hex#645EB5

RGB100, 94, 181

HSL244°, 37%, 54%

On White5.51:1

On Black3.81:1

#F2F2ED background

#182112 ink

#645EB5 accent

#693DAE support

#C6BBA4 neutral

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Use these colors:

Background: #F2F2ED (background)
Ink: #182112 (ink)
Accent: #645EB5 (accent)
Support: #693DAE (support)
Neutral: #C6BBA4 (neutral)

Build a design system around this color.