Cobalt
#273A8B
BlueColor Codes
All color formats for development
HEX
#273A8BRGB
rgb(39, 58, 139)HSL
hsl(229, 56%, 35%)OKLCH
oklch(0.384 0.137 269)CMYK
cmyk(72%, 58%, 0%, 45%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#23347D
2#1F2E6F
3#1B2861
4#182354
5#141D46
6#101738
7#0C112A
8#080C1C
9#04060E
Tints
Lighter variations
1#2F44A5
2#364FBF
3#4A62CC
4#6478D3
5#7E8FDB
6#98A5E2
7#B1BCE9
8#CBD2F0
9#E5E9F8
Tones
Muted variations
1#2C3D86
2#314081
3#36437C
4#3B4677
5#404972
6#454D6D
7#4A5068
8#4F5363
9#54565E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F5 #F3F5FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3E7 #E3E7F7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CBD2 #CBD2F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4B0 #A4B0E5 | BordersInactive statesPlaceholder text |
| 400 | 7486 #7486D8 | Disabled statesSecondary iconsMuted text |
| 500 | 4C64 #4C64CD | Primary brand colorCTAsActive elementsLinks |
| 600 | 3148 #3148AF | Hover statesFocus ringsPrimary buttons hover |
| 700 | 273A #273A8B | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1C29 #1C2963 | Text on light backgroundsHeadingsStrong borders |
| 900 | 121A #121A40 | Primary textHigh emphasis contentDark headings |
| 950 | 0B10 #0B1028 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F5FC;
--cobalt-100: #E3E7F7;
--cobalt-200: #CBD2F0;
--cobalt-300: #A4B0E5;
--cobalt-400: #7486D8;
--cobalt-500: #4C64CD;
--cobalt-600: #3148AF;
--cobalt-700: #273A8B;
--cobalt-800: #1C2963;
--cobalt-900: #121A40;
--cobalt-950: #0B1028;
}