Cobalt Blue
#3B5F8AA true, saturated blue with the intensity of cobalt pigment. Bold and striking, a classic statement colour.
Spec Sheet
Hex#3B5F8A
RGB59, 95, 138
HSL213°, 40%, 39%
On White 6.58:1 AA
On Black 3.19:1 AA Large
For AI Tools
Copy this snippet and paste it into any AI tool
Use these colors for all components: Background: #EAEDF0 Text: #181C20 Accent: #3B5F8A Support: #BF9B6E Neutral: #B9B7D1 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 Cobalt Blue Palettes are free. Exports aren't.
CSS Variables
:root {
--palette-background: #EAEDF0;
--palette-ink: #181C20;
--palette-accent: #3B5F8A;
--palette-support: #BF9B6E;
--palette-neutral: #B9B7D1;
}Tailwind Config
{
"palette-background": "#EAEDF0",
"palette-ink": "#181C20",
"palette-accent": "#3B5F8A",
"palette-support": "#BF9B6E",
"palette-neutral": "#B9B7D1"
}Color Blindness Simulation
#4D618C
Protanopia#435A89
Deuteranopia#02696E
TritanopiaBuild a design system around Cobalt Blue.