St Giles Blue
#599EC4A bright, confident cerulean blue with real punch. Named after a London square, it makes a striking, energetic statement on walls.
Spec Sheet
Hex#599EC4
RGB89, 158, 196
HSL201°, 48%, 56%
On White 2.95:1 Fail
On Black 7.11:1 AAA
For AI Tools
Copy this snippet and paste it into any AI tool
Use these colors for all components: Background: #EEF0F2 Text: #182126 Accent: #599EC4 Support: #9E7D6B Neutral: #B9BCCA 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 St Giles Blue Palettes are free. Exports aren't.
CSS Variables
:root {
--palette-background: #EEF0F2;
--palette-ink: #182126;
--palette-accent: #599EC4;
--palette-support: #9E7D6B;
--palette-neutral: #B9BCCA;
}Tailwind Config
{
"palette-background": "#EEF0F2",
"palette-ink": "#182126",
"palette-accent": "#599EC4",
"palette-support": "#9E7D6B",
"palette-neutral": "#B9BCCA"
}Color Blindness Simulation
#8C9DC6
Protanopia#7D91C3
Deuteranopia#02A8AB
TritanopiaBuild a design system around St Giles Blue.