Cobalt
#283C8A
BlueColor Codes
All color formats for development
HEX
#283C8ARGB
rgb(40, 60, 138)HSL
hsl(228, 55%, 35%)OKLCH
oklch(0.388 0.132 268.6)CMYK
cmyk(71%, 57%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#24367D
2#20306F
3#1C2A61
4#182453
5#141E45
6#101837
7#0C122A
8#080C1C
9#04060E
Tints
Lighter variations
1#3047A4
2#3752BE
3#4B65CB
4#657BD2
5#7F91DA
6#98A7E1
7#B2BDE9
8#CCD3F0
9#E5E9F8
Tones
Muted variations
1#2D3F85
2#324281
3#37457C
4#3C4877
5#414B72
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 | CCD3 #CCD3F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4B1 #A4B1E5 | BordersInactive statesPlaceholder text |
| 400 | 7588 #7588D7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D66 #4D66CB | Primary brand colorCTAsActive elementsLinks |
| 600 | 324B #324BAE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 283C #283C8A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D2B #1D2B63 | 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: #CCD3F0;
--cobalt-300: #A4B1E5;
--cobalt-400: #7588D7;
--cobalt-500: #4D66CB;
--cobalt-600: #324BAE;
--cobalt-700: #283C8A;
--cobalt-800: #1D2B63;
--cobalt-900: #121B3F;
--cobalt-950: #0B1128;
}