Cobalt

#0030B3

Blue

Color Codes

All color formats for development

HEX
#0030B3
RGB
rgb(0, 48, 179)
HSL
hsl(224, 100%, 35%)
OKLCH
oklch(0.393 0.209 263.5)
CMYK
cmyk(100%, 73%, 0%, 30%)

Accessibility

WCAG contrast compliance

On White Background

10.13:1

AA AAA

On Black Background

2.07:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F4
100
#DBE5
200
#BDCE
300
#8AA9
400
#4D7C
500
#1A57
600
#003C
700
#0030
800
#0022
900
#0016
950
#000E

Shades

Darker variations

1#002BA1
2#00268F
3#00217D
4#001D6B
5#001859
6#001347
7#000E36
8#000A24
9#000512

Tints

Lighter variations

1#0038D4
2#0041F5
3#1755FF
4#386DFF
5#5985FF
6#7A9EFF
7#9CB6FF
8#BDCEFF
9#DEE7FF

Tones

Muted variations

1#0934AA
2#1238A1
3#1B3C98
4#24408F
5#2D4486
6#36497D
7#3E4D74
8#47516B
9#505562

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F4
#F0F4FF
BackgroundsSubtle highlightsCard backgrounds
100
DBE5
#DBE5FF
Light backgroundsTable row hoverSkeleton loading
200
BDCE
#BDCEFF
Secondary backgroundsInput backgroundsDividers
300
8AA9
#8AA9FF
BordersInactive statesPlaceholder text
400
4D7C
#4D7CFF
Disabled statesSecondary iconsMuted text
500
1A57
#1A57FF
Primary brand colorCTAsActive elementsLinks
600
003C
#003CE0
Hover statesFocus ringsPrimary buttons hover
700
0030
#0030B3
Active/pressed statesDark mode accentsSecondary text
800
0022
#002280
Text on light backgroundsHeadingsStrong borders
900
0016
#001652
Primary textHigh emphasis contentDark headings
950
000E
#000E33
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F4FF;
  --cobalt-100: #DBE5FF;
  --cobalt-200: #BDCEFF;
  --cobalt-300: #8AA9FF;
  --cobalt-400: #4D7CFF;
  --cobalt-500: #1A57FF;
  --cobalt-600: #003CE0;
  --cobalt-700: #0030B3;
  --cobalt-800: #002280;
  --cobalt-900: #001652;
  --cobalt-950: #000E33;
}
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