#42878A

RGB 66, 135, 138

Values

Hex#42878A

RGB66, 135, 138

HSL183°, 35%, 40%

On White4.15:1

On Black5.06:1

#ECE9EA background

#302818 ink

#42878A accent

#4F5A6D support

#B19AA8 neutral

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Use these colors:

Background: #ECE9EA (background)
Ink: #302818 (ink)
Accent: #42878A (accent)
Support: #4F5A6D (support)
Neutral: #B19AA8 (neutral)

Build a design system around this color.