#638C81

RGB 99, 140, 129

Values

Hex#638C81

RGB99, 140, 129

HSL164°, 17%, 47%

On White3.75:1

On Black5.6:1

#EFECED background

#281915 ink

#638C81 accent

#486B7A support

#B4A2B0 neutral

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Use these colors:

Background: #EFECED (background)
Ink: #281915 (ink)
Accent: #638C81 (accent)
Support: #486B7A (support)
Neutral: #B4A2B0 (neutral)

Build a design system around this color.