#3F599D

RGB 63, 89, 157

Values

Hex#3F599D

RGB63, 89, 157

HSL223°, 43%, 43%

On White6.72:1

On Black3.13:1

#F1F0EE background

#252810 ink

#3F599D accent

#503181 support

#C4B8B1 neutral

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Use these colors:

Background: #F1F0EE (background)
Ink: #252810 (ink)
Accent: #3F599D (accent)
Support: #503181 (support)
Neutral: #C4B8B1 (neutral)

Build a design system around this color.