Cobalt
#28588A
BlueColor Codes
All color formats for development
HEX
#28588ARGB
rgb(40, 88, 138)HSL
hsl(211, 55%, 35%)OKLCH
oklch(0.452 0.097 251.6)CMYK
cmyk(71%, 36%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#244F7D
2#20466F
3#1C3D61
4#183553
5#142C45
6#102337
7#0C1A2A
8#08121C
9#04090E
Tints
Lighter variations
1#3068A4
2#3778BE
3#4B89CB
4#659AD2
5#7FABDA
6#98BBE1
7#B2CCE9
8#CCDDF0
9#E5EEF8
Tones
Muted variations
1#2D5885
2#325881
3#37587C
4#3C5877
5#415872
6#46596D
7#4B5968
8#4F5963
9#54595E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F7 #F3F7FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3ED #E3EDF7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CCDD #CCDDF0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4C3 #A4C3E5 | BordersInactive statesPlaceholder text |
| 400 | 75A4 #75A4D7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D8A #4D8ACB | Primary brand colorCTAsActive elementsLinks |
| 600 | 326E #326EAE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 2858 #28588A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D3F #1D3F63 | Text on light backgroundsHeadingsStrong borders |
| 900 | 1228 #12283F | Primary textHigh emphasis contentDark headings |
| 950 | 0B19 #0B1928 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F7FC;
--cobalt-100: #E3EDF7;
--cobalt-200: #CCDDF0;
--cobalt-300: #A4C3E5;
--cobalt-400: #75A4D7;
--cobalt-500: #4D8ACB;
--cobalt-600: #326EAE;
--cobalt-700: #28588A;
--cobalt-800: #1D3F63;
--cobalt-900: #12283F;
--cobalt-950: #0B1928;
}