Cobalt
#3F40A2
BlueColor Codes
All color formats for development
HEX
#3F40A2RGB
rgb(63, 64, 162)HSL
hsl(239, 44%, 44%)OKLCH
oklch(0.431 0.155 277.3)CMYK
cmyk(61%, 60%, 0%, 36%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#393A91
2#323481
3#2C2D71
4#262761
5#1F2051
6#191A41
7#131330
8#0D0D20
9#060610
Tints
Lighter variations
1#4749B6
2#5A5CBF
3#6F71C7
4#8485CF
5#9899D7
6#ADAEDF
7#C1C2E7
8#D6D6EF
9#EAEBF7
Tones
Muted variations
1#44459D
2#494A98
3#4E4F93
4#53548E
5#585889
6#5C5D84
7#61627F
8#66677A
9#6B6B75
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F4F4 #F4F4FB | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E5E6 #E5E6F5 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CFD0 #CFD0EC | Secondary backgroundsInput backgroundsDividers |
| 300 | ABAB #ABABDE | BordersInactive statesPlaceholder text |
| 400 | 7E80 #7E80CD | Disabled statesSecondary iconsMuted text |
| 500 | 5A5B #5A5BBF | Primary brand colorCTAsActive elementsLinks |
| 600 | 3F40 #3F40A2 | Hover statesFocus ringsPrimary buttons hover |
| 700 | 3233 #323381 | Active/pressed statesDark mode accentsSecondary text |
| 800 | 2425 #24255C | Text on light backgroundsHeadingsStrong borders |
| 900 | 1717 #17173B | Primary textHigh emphasis contentDark headings |
| 950 | 0E0F #0E0F25 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F4F4FB;
--cobalt-100: #E5E6F5;
--cobalt-200: #CFD0EC;
--cobalt-300: #ABABDE;
--cobalt-400: #7E80CD;
--cobalt-500: #5A5BBF;
--cobalt-600: #3F40A2;
--cobalt-700: #323381;
--cobalt-800: #24255C;
--cobalt-900: #17173B;
--cobalt-950: #0E0F25;
}