Cobalt
#1B5798
BlueColor Codes
All color formats for development
HEX
#1B5798RGB
rgb(27, 87, 152)HSL
hsl(211, 70%, 35%)OKLCH
oklch(0.454 0.122 253.7)CMYK
cmyk(82%, 43%, 0%, 40%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#184E89
2#154679
3#133D6A
4#10345B
5#0D2C4C
6#0B233D
7#081A2E
8#05111E
9#03090F
Tints
Lighter variations
1#2067B4
2#2578D0
3#3A88DC
4#5699E1
5#72AAE6
6#8EBBEB
7#AACCF0
8#C7DDF5
9#E3EEFA
Tones
Muted variations
1#215791
2#27588B
3#2E5885
4#34587F
5#3A5878
6#405872
7#47596C
8#4D5966
9#53595F
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F2F7 #F2F7FD | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E1ED #E1EDFA | Light backgroundsTable row hoverSkeleton loading |
| 200 | C7DD #C7DDF5 | Secondary backgroundsInput backgroundsDividers |
| 300 | 9BC3 #9BC3ED | BordersInactive statesPlaceholder text |
| 400 | 67A4 #67A4E4 | Disabled statesSecondary iconsMuted text |
| 500 | 3C8A #3C8ADD | Primary brand colorCTAsActive elementsLinks |
| 600 | 226E #226EBF | Hover statesFocus ringsPrimary buttons hover |
| 700 | 1B57 #1B5798 | Active/pressed statesDark mode accentsSecondary text |
| 800 | 133E #133E6C | Text on light backgroundsHeadingsStrong borders |
| 900 | 0C28 #0C2845 | Primary textHigh emphasis contentDark headings |
| 950 | 0819 #08192B | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F2F7FD;
--cobalt-100: #E1EDFA;
--cobalt-200: #C7DDF5;
--cobalt-300: #9BC3ED;
--cobalt-400: #67A4E4;
--cobalt-500: #3C8ADD;
--cobalt-600: #226EBF;
--cobalt-700: #1B5798;
--cobalt-800: #133E6C;
--cobalt-900: #0C2845;
--cobalt-950: #08192B;
}