Cobalt
#28428A
BlueColor Codes
All color formats for development
HEX
#28428ARGB
rgb(40, 66, 138)HSL
hsl(224, 55%, 35%)OKLCH
oklch(0.401 0.124 266)CMYK
cmyk(71%, 52%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#243C7D
2#20356F
3#1C2E61
4#182853
5#142145
6#101B37
7#0C142A
8#080D1C
9#04070E
Tints
Lighter variations
1#304FA4
2#375BBE
3#4B6DCB
4#6582D2
5#7F97DA
6#98ACE1
7#B2C1E9
8#CCD5F0
9#E5EAF8
Tones
Muted variations
1#2D4585
2#324781
3#37497C
4#3C4C77
5#414E72
6#46506D
7#4B5268
8#4F5563
9#54575E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F5 #F3F5FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3E9 #E3E9F7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CCD5 #CCD5F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4B5 #A4B5E5 | BordersInactive statesPlaceholder text |
| 400 | 758F #758FD7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D6F #4D6FCB | Primary brand colorCTAsActive elementsLinks |
| 600 | 3253 #3253AE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 2842 #28428A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D2F #1D2F63 | Text on light backgroundsHeadingsStrong borders |
| 900 | 121E #121E3F | Primary textHigh emphasis contentDark headings |
| 950 | 0B13 #0B1328 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F5FC;
--cobalt-100: #E3E9F7;
--cobalt-200: #CCD5F0;
--cobalt-300: #A4B5E5;
--cobalt-400: #758FD7;
--cobalt-500: #4D6FCB;
--cobalt-600: #3253AE;
--cobalt-700: #28428A;
--cobalt-800: #1D2F63;
--cobalt-900: #121E3F;
--cobalt-950: #0B1328;
}