Hague Blue
#3D4E57A deep, inky blue-black with tremendous depth. Dramatic in hallways, libraries, and panelled rooms where it absorbs and reflects candlelight.
Spec Sheet
Hex#3D4E57
RGB61, 78, 87
HSL201°, 18%, 29%
On White 8.66:1 AAA
On Black 2.43:1 Fail
For AI Tools
Copy this snippet and paste it into any AI tool
Use these colors for all components: Background: #EDF0F2 Text: #162127 Accent: #3D4E57 Support: #846452 Neutral: #C2C4D1 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
Design System from Hague Blue Palettes are free. Exports aren't.
CSS Variables
:root {
--palette-background: #EDF0F2;
--palette-ink: #162127;
--palette-accent: #3D4E57;
--palette-support: #846452;
--palette-neutral: #C2C4D1;
}Tailwind Config
{
"palette-background": "#EDF0F2",
"palette-ink": "#162127",
"palette-accent": "#3D4E57",
"palette-support": "#846452",
"palette-neutral": "#C2C4D1"
}Color Blindness Simulation
#4A4D57
Protanopia#464A57
Deuteranopia#355151
TritanopiaBuild a design system around Hague Blue.