Cobalt

#0D28D3

Blue

Color Codes

All color formats for development

HEX
#0D28D3
RGB
rgb(13, 40, 211)
HSL
hsl(232, 88%, 44%)
OKLCH
oklch(0.422 0.251 265.3)
CMYK
cmyk(94%, 81%, 0%, 17%)

Accessibility

WCAG contrast compliance

On White Background

9.29:1

AA AAA

On Black Background

2.26:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F2
100
#DDE2
200
#C1C8
300
#919F
400
#576C
500
#2742
600
#0D28
700
#0B20
800
#0817
900
#050E
950
#0309

Shades

Darker variations

1#0C24BE
2#0B20A9
3#091C94
4#08187F
5#071469
6#051054
7#040C3F
8#03082A
9#010415

Tints

Lighter variations

1#0F2DEE
2#2843F1
3#435BF3
4#5E72F5
5#798AF6
6#94A1F8
7#AEB9FA
8#C9D0FC
9#E4E8FD

Tones

Muted variations

1#172FC9
2#2136BF
3#2B3EB5
4#3545AB
5#3F4CA2
6#495398
7#535A8E
8#5C6284
9#66697A

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F2
#F1F2FE
BackgroundsSubtle highlightsCard backgrounds
100
DDE2
#DDE2FD
Light backgroundsTable row hoverSkeleton loading
200
C1C8
#C1C8FB
Secondary backgroundsInput backgroundsDividers
300
919F
#919FF8
BordersInactive statesPlaceholder text
400
576C
#576CF4
Disabled statesSecondary iconsMuted text
500
2742
#2742F1
Primary brand colorCTAsActive elementsLinks
600
0D28
#0D28D3
Hover statesFocus ringsPrimary buttons hover
700
0B20
#0B20A8
Active/pressed statesDark mode accentsSecondary text
800
0817
#081778
Text on light backgroundsHeadingsStrong borders
900
050E
#050E4D
Primary textHigh emphasis contentDark headings
950
0309
#030930
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F2FE;
  --cobalt-100: #DDE2FD;
  --cobalt-200: #C1C8FB;
  --cobalt-300: #919FF8;
  --cobalt-400: #576CF4;
  --cobalt-500: #2742F1;
  --cobalt-600: #0D28D3;
  --cobalt-700: #0B20A8;
  --cobalt-800: #081778;
  --cobalt-900: #050E4D;
  --cobalt-950: #030930;
}
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