Cobalt

#1B4798

Blue

Color Codes

All color formats for development

HEX
#1B4798
RGB
rgb(27, 71, 152)
HSL
hsl(219, 70%, 35%)
OKLCH
oklch(0.418 0.142 261.3)
CMYK
cmyk(82%, 53%, 0%, 40%)

Accessibility

WCAG contrast compliance

On White Background

8.75:1

AA AAA

On Black Background

2.40:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F6
100
#E1E9
200
#C7D7
300
#9BB8
400
#6793
500
#3C74
600
#2259
700
#1B47
800
#1332
900
#0C20
950
#0814

Shades

Darker variations

1#183F89
2#153879
3#13316A
4#102A5B
5#0D234C
6#0B1C3D
7#08152E
8#050E1E
9#03070F

Tints

Lighter variations

1#2054B4
2#2561D0
3#3A73DC
4#5687E1
5#729BE6
6#8EAFEB
7#AAC3F0
8#C7D7F5
9#E3EBFA

Tones

Muted variations

1#214891
2#274A8B
3#2E4C85
4#344E7F
5#3A5078
6#405272
7#47546C
8#4D5666
9#53575F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F6
#F2F6FD
BackgroundsSubtle highlightsCard backgrounds
100
E1E9
#E1E9FA
Light backgroundsTable row hoverSkeleton loading
200
C7D7
#C7D7F5
Secondary backgroundsInput backgroundsDividers
300
9BB8
#9BB8ED
BordersInactive statesPlaceholder text
400
6793
#6793E4
Disabled statesSecondary iconsMuted text
500
3C74
#3C74DD
Primary brand colorCTAsActive elementsLinks
600
2259
#2259BF
Hover statesFocus ringsPrimary buttons hover
700
1B47
#1B4798
Active/pressed statesDark mode accentsSecondary text
800
1332
#13326C
Text on light backgroundsHeadingsStrong borders
900
0C20
#0C2045
Primary textHigh emphasis contentDark headings
950
0814
#08142B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F6FD;
  --cobalt-100: #E1E9FA;
  --cobalt-200: #C7D7F5;
  --cobalt-300: #9BB8ED;
  --cobalt-400: #6793E4;
  --cobalt-500: #3C74DD;
  --cobalt-600: #2259BF;
  --cobalt-700: #1B4798;
  --cobalt-800: #13326C;
  --cobalt-900: #0C2045;
  --cobalt-950: #08142B;
}
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