#638CB0

RGB 99, 140, 176

Values

Hex#638CB0

RGB99, 140, 176

HSL208°, 33%, 54%

On White3.55:1

On Black5.91:1

#ECE8E4 background

#232210 ink

#638CB0 accent

#453BCE support

#CDA2A2 neutral

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Use these colors:

Background: #ECE8E4 (background)
Ink: #232210 (ink)
Accent: #638CB0 (accent)
Support: #453BCE (support)
Neutral: #CDA2A2 (neutral)

Build a design system around this color.