#637F9C

RGB 99, 127, 156

Values

Hex#637F9C

RGB99, 127, 156

HSL211°, 22%, 50%

On White4.16:1

On Black5.05:1

#F5F5F4 background

#282710 ink

#637F9C accent

#705CBC support

#BBA9A5 neutral

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Use these colors:

Background: #F5F5F4 (background)
Ink: #282710 (ink)
Accent: #637F9C (accent)
Support: #705CBC (support)
Neutral: #BBA9A5 (neutral)

Build a design system around this color.