#639C99

RGB 99, 156, 153

Values

Hex#639C99

RGB99, 156, 153

HSL177°, 22%, 50%

On White3.11:1

On Black6.75:1

#F7F3F3 background

#322620 ink

#639C99 accent

#406482 support

#BEACB7 neutral

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Use these colors:

Background: #F7F3F3 (background)
Ink: #322620 (ink)
Accent: #639C99 (accent)
Support: #406482 (support)
Neutral: #BEACB7 (neutral)

Build a design system around this color.