Cobalt
#15579E
BlueColor Codes
All color formats for development
HEX
#15579ERGB
rgb(21, 87, 158)HSL
hsl(211, 77%, 35%)OKLCH
oklch(0.457 0.132 254.2)CMYK
cmyk(87%, 45%, 0%, 38%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#124E8E
2#10467E
3#0E3D6F
4#0C345F
5#0A2B4F
6#08233F
7#061A2F
8#041120
9#020910
Tints
Lighter variations
1#1867BB
2#1C77D9
3#3288E4
4#4F99E8
5#6CAAEC
6#8ABBF0
7#A7CCF4
8#C4DDF7
9#E2EEFB
Tones
Muted variations
1#1B5797
2#225790
3#295889
4#305882
5#37587C
6#3E5875
7#45596E
8#4C5967
9#525960
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F1F7 #F1F7FD | BackgroundsSubtle highlightsCard backgrounds |
| 100 | DFED #DFEDFB | Light backgroundsTable row hoverSkeleton loading |
| 200 | C4DD #C4DDF7 | Secondary backgroundsInput backgroundsDividers |
| 300 | 97C3 #97C3F2 | BordersInactive statesPlaceholder text |
| 400 | 61A3 #61A3EA | Disabled statesSecondary iconsMuted text |
| 500 | 3489 #3489E5 | Primary brand colorCTAsActive elementsLinks |
| 600 | 1A6D #1A6DC7 | Hover statesFocus ringsPrimary buttons hover |
| 700 | 1557 #15579E | Active/pressed statesDark mode accentsSecondary text |
| 800 | 0F3E #0F3E71 | Text on light backgroundsHeadingsStrong borders |
| 900 | 0928 #092848 | Primary textHigh emphasis contentDark headings |
| 950 | 0619 #06192D | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F1F7FD;
--cobalt-100: #DFEDFB;
--cobalt-200: #C4DDF7;
--cobalt-300: #97C3F2;
--cobalt-400: #61A3EA;
--cobalt-500: #3489E5;
--cobalt-600: #1A6DC7;
--cobalt-700: #15579E;
--cobalt-800: #0F3E71;
--cobalt-900: #092848;
--cobalt-950: #06192D;
}