Cobalt

#0D45D3

Blue

Color Codes

All color formats for development

HEX
#0D45D3
RGB
rgb(13, 69, 211)
HSL
hsl(223, 88%, 44%)
OKLCH
oklch(0.464 0.224 263.5)
CMYK
cmyk(94%, 67%, 0%, 17%)

Accessibility

WCAG contrast compliance

On White Background

7.48:1

AA AAA

On Black Background

2.81:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F4
100
#DDE6
200
#C1D1
300
#91AE
400
#5784
500
#2760
600
#0D45
700
#0B37
800
#0827
900
#0519
950
#0310

Shades

Darker variations

1#0C3EBE
2#0B38A9
3#093194
4#082A7F
5#072369
6#051C54
7#04153F
8#030E2A
9#010715

Tints

Lighter variations

1#0F4EEE
2#2861F1
3#4375F3
4#5E89F5
5#799CF6
6#94B0F8
7#AEC4FA
8#C9D8FC
9#E4EBFD

Tones

Muted variations

1#174AC9
2#214EBF
3#2B52B5
4#3557AB
5#3F5BA2
6#495F98
7#53638E
8#5C6884
9#666C7A

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F4
#F1F4FE
BackgroundsSubtle highlightsCard backgrounds
100
DDE6
#DDE6FD
Light backgroundsTable row hoverSkeleton loading
200
C1D1
#C1D1FB
Secondary backgroundsInput backgroundsDividers
300
91AE
#91AEF8
BordersInactive statesPlaceholder text
400
5784
#5784F4
Disabled statesSecondary iconsMuted text
500
2760
#2760F1
Primary brand colorCTAsActive elementsLinks
600
0D45
#0D45D3
Hover statesFocus ringsPrimary buttons hover
700
0B37
#0B37A8
Active/pressed statesDark mode accentsSecondary text
800
0827
#082778
Text on light backgroundsHeadingsStrong borders
900
0519
#05194D
Primary textHigh emphasis contentDark headings
950
0310
#031030
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F4FE;
  --cobalt-100: #DDE6FD;
  --cobalt-200: #C1D1FB;
  --cobalt-300: #91AEF8;
  --cobalt-400: #5784F4;
  --cobalt-500: #2760F1;
  --cobalt-600: #0D45D3;
  --cobalt-700: #0B37A8;
  --cobalt-800: #082778;
  --cobalt-900: #05194D;
  --cobalt-950: #031030;
}
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