Cobalt
#283A8A
BlueColor Codes
All color formats for development
HEX
#283A8ARGB
rgb(40, 58, 138)HSL
hsl(229, 55%, 35%)OKLCH
oklch(0.384 0.135 269.4)CMYK
cmyk(71%, 58%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#24347D
2#202F6F
3#1C2961
4#182353
5#141D45
6#101737
7#0C112A
8#080C1C
9#04060E
Tints
Lighter variations
1#3045A4
2#3750BE
3#4B63CB
4#6579D2
5#7F8FDA
6#98A6E1
7#B2BCE9
8#CCD2F0
9#E5E9F8
Tones
Muted variations
1#2D3D85
2#324081
3#37437C
4#3C4777
5#414A72
6#464D6D
7#4B5068
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 | CCD2 #CCD2F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4B0 #A4B0E5 | BordersInactive statesPlaceholder text |
| 400 | 7587 #7587D7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D64 #4D64CB | Primary brand colorCTAsActive elementsLinks |
| 600 | 3249 #3249AE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 283A #283A8A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D2A #1D2A63 | Text on light backgroundsHeadingsStrong borders |
| 900 | 121B #121B3F | Primary textHigh emphasis contentDark headings |
| 950 | 0B11 #0B1128 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F5FC;
--cobalt-100: #E3E7F7;
--cobalt-200: #CCD2F0;
--cobalt-300: #A4B0E5;
--cobalt-400: #7587D7;
--cobalt-500: #4D64CB;
--cobalt-600: #3249AE;
--cobalt-700: #283A8A;
--cobalt-800: #1D2A63;
--cobalt-900: #121B3F;
--cobalt-950: #0B1128;
}