Cobalt
#284C8A
BlueColor Codes
All color formats for development
HEX
#284C8ARGB
rgb(40, 76, 138)HSL
hsl(218, 55%, 35%)OKLCH
oklch(0.424 0.111 260.5)CMYK
cmyk(71%, 45%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#24457D
2#203D6F
3#1C3561
4#182E53
5#142645
6#101E37
7#0C172A
8#080F1C
9#04080E
Tints
Lighter variations
1#305AA4
2#3768BE
3#4B7ACB
4#658DD2
5#7FA0DA
6#98B3E1
7#B2C6E9
8#CCD9F0
9#E5ECF8
Tones
Muted variations
1#2D4D85
2#324F81
3#37507C
4#3C5177
5#415372
6#46546D
7#4B5568
8#4F5763
9#54585E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F6 #F3F6FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3EB #E3EBF7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CCD9 #CCD9F0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4BC #A4BCE5 | BordersInactive statesPlaceholder text |
| 400 | 7599 #7599D7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D7B #4D7BCB | Primary brand colorCTAsActive elementsLinks |
| 600 | 3260 #3260AE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 284C #284C8A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D36 #1D3663 | Text on light backgroundsHeadingsStrong borders |
| 900 | 1223 #12233F | Primary textHigh emphasis contentDark headings |
| 950 | 0B16 #0B1628 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F6FC;
--cobalt-100: #E3EBF7;
--cobalt-200: #CCD9F0;
--cobalt-300: #A4BCE5;
--cobalt-400: #7599D7;
--cobalt-500: #4D7BCB;
--cobalt-600: #3260AE;
--cobalt-700: #284C8A;
--cobalt-800: #1D3663;
--cobalt-900: #12233F;
--cobalt-950: #0B1628;
}