Cobalt

#045CAF

Blue

Color Codes

All color formats for development

HEX
#045CAF
RGB
rgb(4, 92, 175)
HSL
hsl(209, 96%, 35%)
OKLCH
oklch(0.478 0.151 254.2)
CMYK
cmyk(98%, 47%, 0%, 31%)

Accessibility

WCAG contrast compliance

On White Background

6.66:1

AA AAA

On Black Background

3.16:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F8
100
#DCEE
200
#BEDF
300
#8CC6
400
#50A9
500
#1E90
600
#0474
700
#045C
800
#0342
900
#022A
950
#011A

Shades

Darker variations

1#03539D
2#034A8C
3#02407A
4#023769
5#022E57
6#012546
7#011C34
8#011223
9#000911

Tints

Lighter variations

1#046DCF
2#057EF0
3#1C8FFA
4#3C9FFB
5#5DAFFC
6#7DBFFC
7#9ECFFD
8#BEDFFE
9#DFEFFE

Tones

Muted variations

1#0C5CA6
2#155C9E
3#1D5B95
4#265B8D
5#2E5B84
6#375A7C
7#405A73
8#485A6A
9#515A62

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
BEDF
#BEDFFE
Secondary backgroundsInput backgroundsDividers
300
8CC6
#8CC6FD
BordersInactive statesPlaceholder text
400
50A9
#50A9FB
Disabled statesSecondary iconsMuted text
500
1E90
#1E90FA
Primary brand colorCTAsActive elementsLinks
600
0474
#0474DC
Hover statesFocus ringsPrimary buttons hover
700
045C
#045CAF
Active/pressed statesDark mode accentsSecondary text
800
0342
#03427D
Text on light backgroundsHeadingsStrong borders
900
022A
#022A50
Primary textHigh emphasis contentDark headings
950
011A
#011A32
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F8FF;
  --cobalt-100: #DCEEFE;
  --cobalt-200: #BEDFFE;
  --cobalt-300: #8CC6FD;
  --cobalt-400: #50A9FB;
  --cobalt-500: #1E90FA;
  --cobalt-600: #0474DC;
  --cobalt-700: #045CAF;
  --cobalt-800: #03427D;
  --cobalt-900: #022A50;
  --cobalt-950: #011A32;
}
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