Cobalt

#0451AE

Blue

Color Codes

All color formats for development

HEX
#0451AE
RGB
rgb(4, 81, 174)
HSL
hsl(213, 96%, 35%)
OKLCH
oklch(0.453 0.163 257.8)
CMYK
cmyk(98%, 53%, 0%, 32%)

Accessibility

WCAG contrast compliance

On White Background

7.52:1

AA AAA

On Black Background

2.79:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F7
100
#DCEB
200
#BEDB
300
#8CBF
400
#509D
500
#1E81
600
#0465
700
#0451
800
#033A
900
#0225
950
#0117

Shades

Darker variations

1#03499D
2#03418C
3#02387A
4#023069
5#022857
6#012046
7#011834
8#011023
9#000811

Tints

Lighter variations

1#0460CF
2#056FF0
3#1C80FA
4#3C92FB
5#5DA4FC
6#7DB6FC
7#9EC9FD
8#BEDBFE
9#DFEDFE

Tones

Muted variations

1#0C52A6
2#15529E
3#1D5395
4#26548D
5#2E5584
6#37567C
7#405773
8#48586A
9#515862

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F7
#F0F7FF
BackgroundsSubtle highlightsCard backgrounds
100
DCEB
#DCEBFE
Light backgroundsTable row hoverSkeleton loading
200
BEDB
#BEDBFE
Secondary backgroundsInput backgroundsDividers
300
8CBF
#8CBFFD
BordersInactive statesPlaceholder text
400
509D
#509DFB
Disabled statesSecondary iconsMuted text
500
1E81
#1E81FA
Primary brand colorCTAsActive elementsLinks
600
0465
#0465DC
Hover statesFocus ringsPrimary buttons hover
700
0451
#0451AF
Active/pressed statesDark mode accentsSecondary text
800
033A
#033A7D
Text on light backgroundsHeadingsStrong borders
900
0225
#022550
Primary textHigh emphasis contentDark headings
950
0117
#011732
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F7FF;
  --cobalt-100: #DCEBFE;
  --cobalt-200: #BEDBFE;
  --cobalt-300: #8CBFFD;
  --cobalt-400: #509DFB;
  --cobalt-500: #1E81FA;
  --cobalt-600: #0465DC;
  --cobalt-700: #0451AF;
  --cobalt-800: #033A7D;
  --cobalt-900: #022550;
  --cobalt-950: #011732;
}
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