Cobalt

#0437AE

Blue

Color Codes

All color formats for development

HEX
#0437AE
RGB
rgb(4, 55, 174)
HSL
hsl(222, 96%, 35%)
OKLCH
oklch(0.401 0.195 263.1)
CMYK
cmyk(98%, 68%, 0%, 32%)

Accessibility

WCAG contrast compliance

On White Background

9.71:1

AA AAA

On Black Background

2.16:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F4
100
#DCE6
200
#BED1
300
#8CAE
400
#5083
500
#1E60
600
#0445
700
#0437
800
#0327
900
#0219
950
#0110

Shades

Darker variations

1#03319D
2#032C8C
3#02267A
4#022169
5#021B57
6#011646
7#011034
8#010B23
9#000511

Tints

Lighter variations

1#0441CF
2#054BF0
3#1C5EFA
4#3C75FB
5#5D8CFC
6#7DA3FC
7#9EBAFD
8#BED1FE
9#DFE8FE

Tones

Muted variations

1#0C3AA6
2#153E9E
3#1D4195
4#26458D
5#2E4884
6#374C7C
7#404F73
8#48526A
9#515662

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F4
#F0F4FF
BackgroundsSubtle highlightsCard backgrounds
100
DCE6
#DCE6FE
Light backgroundsTable row hoverSkeleton loading
200
BED1
#BED1FE
Secondary backgroundsInput backgroundsDividers
300
8CAE
#8CAEFD
BordersInactive statesPlaceholder text
400
5083
#5083FB
Disabled statesSecondary iconsMuted text
500
1E60
#1E60FA
Primary brand colorCTAsActive elementsLinks
600
0445
#0445DC
Hover statesFocus ringsPrimary buttons hover
700
0437
#0437AF
Active/pressed statesDark mode accentsSecondary text
800
0327
#03277D
Text on light backgroundsHeadingsStrong borders
900
0219
#021950
Primary textHigh emphasis contentDark headings
950
0110
#011032
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F4FF;
  --cobalt-100: #DCE6FE;
  --cobalt-200: #BED1FE;
  --cobalt-300: #8CAEFD;
  --cobalt-400: #5083FB;
  --cobalt-500: #1E60FA;
  --cobalt-600: #0445DC;
  --cobalt-700: #0437AF;
  --cobalt-800: #03277D;
  --cobalt-900: #021950;
  --cobalt-950: #011032;
}
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