#639C90

RGB 99, 156, 144

Values

Hex#639C90

RGB99, 156, 144

HSL167°, 22%, 50%

On White3.14:1

On Black6.69:1

#E7E4E5 background

#271916 ink

#639C90 accent

#649196 support

#BBB4BA neutral

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Use these colors:

Background: #E7E4E5 (background)
Ink: #271916 (ink)
Accent: #639C90 (accent)
Support: #649196 (support)
Neutral: #BBB4BA (neutral)

Build a design system around this color.