Cobalt
#273F8B
BlueColor Codes
All color formats for development
HEX
#273F8BRGB
rgb(39, 63, 139)HSL
hsl(226, 56%, 35%)OKLCH
oklch(0.395 0.13 267)CMYK
cmyk(72%, 55%, 0%, 45%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#23387D
2#1F326F
3#1B2C61
4#182654
5#141F46
6#101938
7#0C132A
8#080D1C
9#04060E
Tints
Lighter variations
1#2F4AA5
2#3656BF
3#4A68CC
4#647ED3
5#7E93DB
6#98A9E2
7#B1BEE9
8#CBD4F0
9#E5E9F8
Tones
Muted variations
1#2C4186
2#314481
3#36477C
4#3B4977
5#404C72
6#454F6D
7#4A5168
8#4F5463
9#54575E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F5 #F3F5FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3E8 #E3E8F7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CBD4 #CBD4F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4B3 #A4B3E5 | BordersInactive statesPlaceholder text |
| 400 | 748B #748BD8 | Disabled statesSecondary iconsMuted text |
| 500 | 4C6A #4C6ACD | Primary brand colorCTAsActive elementsLinks |
| 600 | 314F #314FAF | Hover statesFocus ringsPrimary buttons hover |
| 700 | 273F #273F8B | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1C2D #1C2D63 | Text on light backgroundsHeadingsStrong borders |
| 900 | 121D #121D40 | Primary textHigh emphasis contentDark headings |
| 950 | 0B12 #0B1228 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F5FC;
--cobalt-100: #E3E8F7;
--cobalt-200: #CBD4F0;
--cobalt-300: #A4B3E5;
--cobalt-400: #748BD8;
--cobalt-500: #4C6ACD;
--cobalt-600: #314FAF;
--cobalt-700: #273F8B;
--cobalt-800: #1C2D63;
--cobalt-900: #121D40;
--cobalt-950: #0B1228;
}