Cobalt

#343AAD

Blue

Color Codes

All color formats for development

HEX
#343AAD
RGB
rgb(52, 58, 173)
HSL
hsl(237, 54%, 44%)
OKLCH
oklch(0.422 0.18 273.4)
CMYK
cmyk(70%, 66%, 0%, 32%)

Accessibility

WCAG contrast compliance

On White Background

8.92:1

AA AAA

On Black Background

2.35:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F4
100
#E4E4
200
#CCCE
300
#A5A8
400
#767A
500
#4E54
600
#343A
700
#292E
800
#1D21
900
#1315
950
#0C0D

Shades

Darker variations

1#2E349C
2#292E8A
3#242879
4#1F2368
5#1A1D56
6#151745
7#0F1134
8#0A0C23
9#050611

Tints

Lighter variations

1#3A41C3
2#4F55CA
3#656AD1
4#7B80D8
5#9195DE
6#A7AAE5
7#BDBFEB
8#D3D5F2
9#E9EAF8

Tones

Muted variations

1#3A3FA7
2#4045A1
3#464A9B
4#4C4F95
5#52558E
6#585A88
7#5E6082
8#64657C
9#6A6B76

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F4
#F3F4FB
BackgroundsSubtle highlightsCard backgrounds
100
E4E4
#E4E4F7
Light backgroundsTable row hoverSkeleton loading
200
CCCE
#CCCEF0
Secondary backgroundsInput backgroundsDividers
300
A5A8
#A5A8E4
BordersInactive statesPlaceholder text
400
767A
#767AD6
Disabled statesSecondary iconsMuted text
500
4E54
#4E54CA
Primary brand colorCTAsActive elementsLinks
600
343A
#343AAD
Hover statesFocus ringsPrimary buttons hover
700
292E
#292E89
Active/pressed statesDark mode accentsSecondary text
800
1D21
#1D2162
Text on light backgroundsHeadingsStrong borders
900
1315
#13153F
Primary textHigh emphasis contentDark headings
950
0C0D
#0C0D27
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F4FB;
  --cobalt-100: #E4E4F7;
  --cobalt-200: #CCCEF0;
  --cobalt-300: #A5A8E4;
  --cobalt-400: #767AD6;
  --cobalt-500: #4E54CA;
  --cobalt-600: #343AAD;
  --cobalt-700: #292E89;
  --cobalt-800: #1D2162;
  --cobalt-900: #13153F;
  --cobalt-950: #0C0D27;
}
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