#639C99

RGB 99, 156, 153

Values

Hex#639C99

RGB99, 156, 153

HSL177°, 22%, 50%

On White3.11:1

On Black6.75:1

#EDE9E8 background

#231C15 ink

#639C99 accent

#1A65A2 support

#C898AA neutral

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Use these colors:

Background: #EDE9E8 (background)
Ink: #231C15 (ink)
Accent: #639C99 (accent)
Support: #1A65A2 (support)
Neutral: #C898AA (neutral)

Build a design system around this color.