#639C8A

RGB 99, 156, 138

Values

Hex#639C8A

RGB99, 156, 138

HSL161°, 22%, 50%

On White3.16:1

On Black6.65:1

#EFECED background

#371715 ink

#639C8A accent

#3D758F support

#C0AAC0 neutral

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Use these colors:

Background: #EFECED (background)
Ink: #371715 (ink)
Accent: #639C8A (accent)
Support: #3D758F (support)
Neutral: #C0AAC0 (neutral)

Build a design system around this color.