#3F5788

RGB 63, 87, 136

Values

Hex#3F5788

RGB63, 87, 136

HSL220°, 37%, 39%

On White7.17:1

On Black2.93:1

#E9E8E2 background

#212518 ink

#3F5788 accent

#412AD5 support

#BFA79B neutral

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Use these colors:

Background: #E9E8E2 (background)
Ink: #212518 (ink)
Accent: #3F5788 (accent)
Support: #412AD5 (support)
Neutral: #BFA79B (neutral)

Build a design system around this color.