Neptune Blue

Name: Neptune Blue
Brand: Behr

570D-6 / Behr

#39729C

A rich blue with quiet confidence. Creates restful bedrooms and focused home offices.

Spec Sheet

Hex#39729C

RGB57, 114, 156

HSL205°, 46%, 42%

On White 5.17:1 AA

On Black 4.06:1 AA Large

For AI Tools

Copy this snippet and paste it into any AI tool

Use these colors for all components:

Background: #F0F3F4
Text: #1B2B37
Accent: #39729C
Support: #916240
Neutral: #BBBDD3

Rules:
- Use Background for surfaces and canvas
- Use Ink for body text and icons
- Never use Accent as body text — contrast is too low
- Maintain 4.5:1 minimum contrast for normal text

Learn more about AI Palette

Design System from Neptune Blue Palettes are free. Exports aren't.

#F0F3F4 background RGB 240 243 244

#1B2B37 ink RGB 27 43 55

#39729C accent RGB 57 114 156

#916240 support RGB 145 98 64

#BBBDD3 neutral RGB 187 189 211

Processed in 0ms

CSS Variables

:root {
  --palette-background: #F0F3F4;
  --palette-ink: #1B2B37;
  --palette-accent: #39729C;
  --palette-support: #916240;
  --palette-neutral: #BBBDD3;
}

Tailwind Config

{
  "palette-background": "#F0F3F4",
  "palette-ink": "#1B2B37",
  "palette-accent": "#39729C",
  "palette-support": "#916240",
  "palette-neutral": "#BBBDD3"
}

Pro Exports Pro

Unlock for £4/month

Build a design system around Neptune Blue.