Cobalt

#03447C

Blue

Color Codes

All color formats for development

HEX
#03447C
RGB
rgb(3, 68, 124)
HSL
hsl(208, 95%, 25%)
OKLCH
oklch(0.384 0.111 251.7)
CMYK
cmyk(98%, 45%, 0%, 51%)

Accessibility

WCAG contrast compliance

On White Background

9.90:1

AA AAA

On Black Background

2.12:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F8
100
#DCEE
200
#BEE0
300
#8DC8
400
#51AB
500
#1F94
600
#0677
700
#045F
800
#0344
900
#022B
950
#011B

Shades

Darker variations

1#033D70
2#033663
3#022F57
4#02294B
5#02223E
6#011B32
7#011425
8#010E19
9#00070C

Tints

Lighter variations

1#0458A2
2#056CC7
3#0681EC
4#1F94F9
5#45A5FA
6#6AB7FB
7#8FC9FC
8#B4DBFD
9#DAEDFE

Tones

Muted variations

1#094376
2#0F4370
3#15436A
4#1B4264
5#21425E
6#284158
7#2E4152
8#34414C
9#3A4046

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F8
#F0F8FF
BackgroundsSubtle highlightsCard backgrounds
100
DCEE
#DCEEFE
Light backgroundsTable row hoverSkeleton loading
200
BEE0
#BEE0FD
Secondary backgroundsInput backgroundsDividers
300
8DC8
#8DC8FC
BordersInactive statesPlaceholder text
400
51AB
#51ABFB
Disabled statesSecondary iconsMuted text
500
1F94
#1F94F9
Primary brand colorCTAsActive elementsLinks
600
0677
#0677DB
Hover statesFocus ringsPrimary buttons hover
700
045F
#045FAE
Active/pressed statesDark mode accentsSecondary text
800
0344
#03447C
Text on light backgroundsHeadingsStrong borders
900
022B
#022B50
Primary textHigh emphasis contentDark headings
950
011B
#011B32
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F8FF;
  --cobalt-100: #DCEEFE;
  --cobalt-200: #BEE0FD;
  --cobalt-300: #8DC8FC;
  --cobalt-400: #51ABFB;
  --cobalt-500: #1F94F9;
  --cobalt-600: #0677DB;
  --cobalt-700: #045FAE;
  --cobalt-800: #03447C;
  --cobalt-900: #022B50;
  --cobalt-950: #011B32;
}
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