Cobalt
#1A3399
BlueColor Codes
All color formats for development
HEX
#1A3399RGB
rgb(26, 51, 153)HSL
hsl(228, 71%, 35%)OKLCH
oklch(0.377 0.168 266.7)CMYK
cmyk(83%, 67%, 0%, 40%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#172E89
2#15297A
3#12246B
4#101F5C
5#0D1A4C
6#0A143D
7#080F2E
8#050A1F
9#03050F
Tints
Lighter variations
1#1F3DB5
2#2346D1
3#395ADD
4#5571E2
5#7189E7
6#8EA0EC
7#AAB8F1
8#C6D0F5
9#E3E7FA
Tones
Muted variations
1#203792
2#273B8C
3#2D3F86
4#33427F
5#3A4679
6#404A73
7#464E6C
8#4D5266
9#535560
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F2F4 #F2F4FD | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E0E6 #E0E6FA | Light backgroundsTable row hoverSkeleton loading |
| 200 | C6D0 #C6D0F5 | Secondary backgroundsInput backgroundsDividers |
| 300 | 9BAB #9BABEE | BordersInactive statesPlaceholder text |
| 400 | 6680 #6680E5 | Disabled statesSecondary iconsMuted text |
| 500 | 3B5B #3B5BDE | Primary brand colorCTAsActive elementsLinks |
| 600 | 2140 #2140C0 | Hover statesFocus ringsPrimary buttons hover |
| 700 | 1A33 #1A3399 | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1225 #12256D | Text on light backgroundsHeadingsStrong borders |
| 900 | 0C17 #0C1746 | Primary textHigh emphasis contentDark headings |
| 950 | 070F #070F2C | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F2F4FD;
--cobalt-100: #E0E6FA;
--cobalt-200: #C6D0F5;
--cobalt-300: #9BABEE;
--cobalt-400: #6680E5;
--cobalt-500: #3B5BDE;
--cobalt-600: #2140C0;
--cobalt-700: #1A3399;
--cobalt-800: #12256D;
--cobalt-900: #0C1746;
--cobalt-950: #070F2C;
}