Cobalt

#0434AF

Blue

Color Codes

All color formats for development

HEX
#0434AF
RGB
rgb(4, 52, 175)
HSL
hsl(223, 96%, 35%)
OKLCH
oklch(0.396 0.199 263.5)
CMYK
cmyk(98%, 70%, 0%, 31%)

Accessibility

WCAG contrast compliance

On White Background

9.93:1

AA AAA

On Black Background

2.12:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F4
100
#DCE6
200
#BED0
300
#8CAC
400
#5081
500
#1E5D
600
#0442
700
#0434
800
#0325
900
#0218
950
#010F

Shades

Darker variations

1#032F9D
2#032A8C
3#02247A
4#021F69
5#021A57
6#011546
7#011034
8#010A23
9#000511

Tints

Lighter variations

1#043ECF
2#0547F0
3#1C5BFA
4#3C72FB
5#5D8AFC
6#7DA1FC
7#9EB9FD
8#BED0FE
9#DFE8FE

Tones

Muted variations

1#0C38A6
2#153C9E
3#1D3F95
4#26438D
5#2E4784
6#374A7C
7#404E73
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
BED0
#BED0FE
Secondary backgroundsInput backgroundsDividers
300
8CAC
#8CACFD
BordersInactive statesPlaceholder text
400
5081
#5081FB
Disabled statesSecondary iconsMuted text
500
1E5D
#1E5DFA
Primary brand colorCTAsActive elementsLinks
600
0442
#0442DC
Hover statesFocus ringsPrimary buttons hover
700
0434
#0434AF
Active/pressed statesDark mode accentsSecondary text
800
0325
#03257D
Text on light backgroundsHeadingsStrong borders
900
0218
#021850
Primary textHigh emphasis contentDark headings
950
010F
#010F32
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F4FF;
  --cobalt-100: #DCE6FE;
  --cobalt-200: #BED0FE;
  --cobalt-300: #8CACFD;
  --cobalt-400: #5081FB;
  --cobalt-500: #1E5DFA;
  --cobalt-600: #0442DC;
  --cobalt-700: #0434AF;
  --cobalt-800: #03257D;
  --cobalt-900: #021850;
  --cobalt-950: #010F32;
}
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