Cobalt
#042FAE
BlueColor Codes
All color formats for development
HEX
#042FAERGB
rgb(4, 47, 174)HSL
hsl(225, 96%, 35%)OKLCH
oklch(0.387 0.203 263.9)CMYK
cmyk(98%, 73%, 0%, 32%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#032A9D
2#03258C
3#02207A
4#021C69
5#021757
6#011346
7#010E34
8#010923
9#000511
Tints
Lighter variations
1#0437CF
2#0540F0
3#1C53FA
4#3C6CFB
5#5D84FC
6#7D9DFC
7#9EB5FD
8#BECEFE
9#DFE6FE
Tones
Muted variations
1#0C33A6
2#15379E
3#1D3B95
4#26408D
5#2E4484
6#37487C
7#404C73
8#48516A
9#515562
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F0F4 #F0F4FF | BackgroundsSubtle highlightsCard backgrounds |
| 100 | DCE5 #DCE5FE | Light backgroundsTable row hoverSkeleton loading |
| 200 | BECE #BECEFE | Secondary backgroundsInput backgroundsDividers |
| 300 | 8CA8 #8CA8FD | BordersInactive statesPlaceholder text |
| 400 | 507B #507BFB | Disabled statesSecondary iconsMuted text |
| 500 | 1E55 #1E55FA | Primary brand colorCTAsActive elementsLinks |
| 600 | 043A #043ADC | Hover statesFocus ringsPrimary buttons hover |
| 700 | 042E #042EAF | Active/pressed statesDark mode accentsSecondary text |
| 800 | 0321 #03217D | Text on light backgroundsHeadingsStrong borders |
| 900 | 0215 #021550 | Primary textHigh emphasis contentDark headings |
| 950 | 010D #010D32 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F0F4FF;
--cobalt-100: #DCE5FE;
--cobalt-200: #BECEFE;
--cobalt-300: #8CA8FD;
--cobalt-400: #507BFB;
--cobalt-500: #1E55FA;
--cobalt-600: #043ADC;
--cobalt-700: #042EAF;
--cobalt-800: #03217D;
--cobalt-900: #021550;
--cobalt-950: #010D32;
}