Cobalt

#003780

Blue

Color Codes

All color formats for development

HEX
#003780
RGB
rgb(0, 55, 128)
HSL
hsl(214, 100%, 25%)
OKLCH
oklch(0.355 0.134 258.5)
CMYK
cmyk(100%, 57%, 0%, 50%)

Accessibility

WCAG contrast compliance

On White Background

11.30:1

AA AAA

On Black Background

1.86:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F6
100
#DBEB
200
#BDD9
300
#8ABD
400
#4D9A
500
#1A7D
600
#0061
700
#004D
800
#0037
900
#0023
950
#0016

Shades

Darker variations

1#003273
2#002C66
3#002759
4#00214D
5#001C40
6#001633
7#001126
8#000B1A
9#00060D

Tints

Lighter variations

1#0048A6
2#0058CC
3#0069F2
4#1A7DFF
5#4093FF
6#66A8FF
7#8CBEFF
8#B3D4FF
9#D9E9FF

Tones

Muted variations

1#063879
2#0D3973
3#133A6C
4#193B66
5#203B60
6#263C59
7#2D3D53
8#333E4D
9#393F46

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F6
#F0F6FF
BackgroundsSubtle highlightsCard backgrounds
100
DBEB
#DBEBFF
Light backgroundsTable row hoverSkeleton loading
200
BDD9
#BDD9FF
Secondary backgroundsInput backgroundsDividers
300
8ABD
#8ABDFF
BordersInactive statesPlaceholder text
400
4D9A
#4D9AFF
Disabled statesSecondary iconsMuted text
500
1A7D
#1A7DFF
Primary brand colorCTAsActive elementsLinks
600
0061
#0061E0
Hover statesFocus ringsPrimary buttons hover
700
004D
#004DB3
Active/pressed statesDark mode accentsSecondary text
800
0037
#003780
Text on light backgroundsHeadingsStrong borders
900
0023
#002352
Primary textHigh emphasis contentDark headings
950
0016
#001633
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F6FF;
  --cobalt-100: #DBEBFF;
  --cobalt-200: #BDD9FF;
  --cobalt-300: #8ABDFF;
  --cobalt-400: #4D9AFF;
  --cobalt-500: #1A7DFF;
  --cobalt-600: #0061E0;
  --cobalt-700: #004DB3;
  --cobalt-800: #003780;
  --cobalt-900: #002352;
  --cobalt-950: #001633;
}
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