#638C89

RGB 99, 140, 137

Values

Hex#638C89

RGB99, 140, 137

HSL176°, 17%, 47%

On White3.72:1

On Black5.64:1

#EAE1E1 background

#43392D ink

#638C89 accent

#57747F support

#CFC9CE neutral

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Use these colors:

Background: #EAE1E1 (background)
Ink: #43392D (ink)
Accent: #638C89 (accent)
Support: #57747F (support)
Neutral: #CFC9CE (neutral)

Build a design system around this color.