#638C8B

RGB 99, 140, 139

Values

Hex#638C8B

RGB99, 140, 139

HSL179°, 17%, 47%

On White3.71:1

On Black5.65:1

#EFEBEB background

#443122 ink

#638C8B accent

#415F9B support

#B4A7AC neutral

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Use these colors:

Background: #EFEBEB (background)
Ink: #443122 (ink)
Accent: #638C8B (accent)
Support: #415F9B (support)
Neutral: #B4A7AC (neutral)

Build a design system around this color.