Cobalt

#0B3ED5

Blue

Color Codes

All color formats for development

HEX
#0B3ED5
RGB
rgb(11, 62, 213)
HSL
hsl(225, 90%, 44%)
OKLCH
oklch(0.454 0.234 264.1)
CMYK
cmyk(95%, 71%, 0%, 16%)

Accessibility

WCAG contrast compliance

On White Background

7.88:1

AA AAA

On Black Background

2.66:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F4
100
#DDE5
200
#C0CF
300
#90AA
400
#557E
500
#2559
600
#0B3E
700
#0931
800
#0623
900
#0416
950
#030E

Shades

Darker variations

1#0A38C0
2#0931AB
3#082B95
4#072580
5#061F6B
6#041955
7#031340
8#020C2B
9#010615

Tints

Lighter variations

1#0D46F0
2#2659F4
3#416EF5
4#5C83F6
5#7797F8
6#92ACF9
7#AEC1FB
8#C9D6FC
9#E4EAFE

Tones

Muted variations

1#1543CB
2#1F48C1
3#2A4DB7
4#3452AD
5#3E57A3
6#485C99
7#52618E
8#5C6684
9#666B7A

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F4
#F0F4FE
BackgroundsSubtle highlightsCard backgrounds
100
DDE5
#DDE5FD
Light backgroundsTable row hoverSkeleton loading
200
C0CF
#C0CFFC
Secondary backgroundsInput backgroundsDividers
300
90AA
#90AAF9
BordersInactive statesPlaceholder text
400
557E
#557EF6
Disabled statesSecondary iconsMuted text
500
2559
#2559F4
Primary brand colorCTAsActive elementsLinks
600
0B3E
#0B3ED5
Hover statesFocus ringsPrimary buttons hover
700
0931
#0931AA
Active/pressed statesDark mode accentsSecondary text
800
0623
#062379
Text on light backgroundsHeadingsStrong borders
900
0416
#04164E
Primary textHigh emphasis contentDark headings
950
030E
#030E30
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F4FE;
  --cobalt-100: #DDE5FD;
  --cobalt-200: #C0CFFC;
  --cobalt-300: #90AAF9;
  --cobalt-400: #557EF6;
  --cobalt-500: #2559F4;
  --cobalt-600: #0B3ED5;
  --cobalt-700: #0931AA;
  --cobalt-800: #062379;
  --cobalt-900: #04164E;
  --cobalt-950: #030E30;
}
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