Cobalt
#303FB0
BlueColor Codes
All color formats for development
HEX
#303FB0RGB
rgb(48, 63, 176)HSL
hsl(233, 57%, 44%)OKLCH
oklch(0.432 0.179 270.9)CMYK
cmyk(73%, 64%, 0%, 31%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#2B399F
2#27338D
3#222C7B
4#1D266A
5#182058
6#131946
7#0E1335
8#0A0D23
9#050612
Tints
Lighter variations
1#3647C7
2#4C5BCE
3#626FD4
4#7884DA
5#8F98E0
6#A5ADE6
7#BCC1ED
8#D2D6F3
9#E9EAF9
Tones
Muted variations
1#3744AA
2#3D49A3
3#434E9D
4#4A5397
5#505890
6#575D8A
7#5D6183
8#63667D
9#6A6B77
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F4 #F3F4FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3E5 #E3E5F7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CBCF #CBCFF1 | Secondary backgroundsInput backgroundsDividers |
| 300 | A3AB #A3ABE6 | BordersInactive statesPlaceholder text |
| 400 | 737F #737FD9 | Disabled statesSecondary iconsMuted text |
| 500 | 4B5A #4B5ACE | Primary brand colorCTAsActive elementsLinks |
| 600 | 303F #303FB0 | Hover statesFocus ringsPrimary buttons hover |
| 700 | 2632 #26328C | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1B24 #1B2464 | Text on light backgroundsHeadingsStrong borders |
| 900 | 1217 #121740 | Primary textHigh emphasis contentDark headings |
| 950 | 0B0E #0B0E28 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F4FC;
--cobalt-100: #E3E5F7;
--cobalt-200: #CBCFF1;
--cobalt-300: #A3ABE6;
--cobalt-400: #737FD9;
--cobalt-500: #4B5ACE;
--cobalt-600: #303FB0;
--cobalt-700: #26328C;
--cobalt-800: #1B2464;
--cobalt-900: #121740;
--cobalt-950: #0B0E28;
}