Cobalt
#28378A
BlueColor Codes
All color formats for development
HEX
#28378ARGB
rgb(40, 55, 138)HSL
hsl(231, 55%, 35%)OKLCH
oklch(0.378 0.139 270.5)CMYK
cmyk(71%, 60%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#24317D
2#202C6F
3#1C2661
4#182153
5#141B45
6#101637
7#0C102A
8#080B1C
9#04050E
Tints
Lighter variations
1#3041A4
2#374BBE
3#4B5ECB
4#6575D2
5#7F8CDA
6#98A3E1
7#B2BAE9
8#CCD1F0
9#E5E8F8
Tones
Muted variations
1#2D3A85
2#323E81
3#37417C
4#3C4577
5#414872
6#464C6D
7#4B4F68
8#4F5263
9#54565E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F4 #F3F4FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3E6 #E3E6F7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CCD1 #CCD1F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4AE #A4AEE5 | BordersInactive statesPlaceholder text |
| 400 | 7583 #7583D7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D60 #4D60CB | Primary brand colorCTAsActive elementsLinks |
| 600 | 3245 #3245AE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 2837 #28378A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D27 #1D2763 | Text on light backgroundsHeadingsStrong borders |
| 900 | 1219 #12193F | Primary textHigh emphasis contentDark headings |
| 950 | 0B10 #0B1028 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F4FC;
--cobalt-100: #E3E6F7;
--cobalt-200: #CCD1F0;
--cobalt-300: #A4AEE5;
--cobalt-400: #7583D7;
--cobalt-500: #4D60CB;
--cobalt-600: #3245AE;
--cobalt-700: #28378A;
--cobalt-800: #1D2763;
--cobalt-900: #12193F;
--cobalt-950: #0B1028;
}