#3F577D

RGB 63, 87, 125

Values

Hex#3F577D

RGB63, 87, 125

HSL217°, 33%, 37%

On White7.32:1

On Black2.87:1

#E8E5DE background

#3D421A ink

#3F577D accent

#2C17DE support

#BF888A neutral

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Use these colors:

Background: #E8E5DE (background)
Ink: #3D421A (ink)
Accent: #3F577D (accent)
Support: #2C17DE (support)
Neutral: #BF888A (neutral)

Build a design system around this color.