Cobalt

#03407D

Blue

Color Codes

All color formats for development

HEX
#03407D
RGB
rgb(3, 64, 125)
HSL
hsl(210, 95%, 25%)
OKLCH
oklch(0.375 0.118 254.3)
CMYK
cmyk(98%, 49%, 0%, 51%)

Accessibility

WCAG contrast compliance

On White Background

10.33:1

AA AAA

On Black Background

2.03:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F7
100
#DCED
200
#BEDE
300
#8DC4
400
#51A6
500
#1F8C
600
#0670
700
#0459
800
#0340
900
#0229
950
#011A

Shades

Darker variations

1#033970
2#033363
3#022D57
4#02264B
5#02203E
6#011932
7#011325
8#010D19
9#00060C

Tints

Lighter variations

1#0453A2
2#0566C7
3#0679EC
4#1F8CF9
5#459FFA
6#6AB2FB
7#8FC6FC
8#B4D9FD
9#DAECFE

Tones

Muted variations

1#094076
2#0F4070
3#15406A
4#1B4064
5#21405E
6#284058
7#2E4052
8#34404C
9#3A4046

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F7
#F0F7FF
BackgroundsSubtle highlightsCard backgrounds
100
DCED
#DCEDFE
Light backgroundsTable row hoverSkeleton loading
200
BEDE
#BEDEFD
Secondary backgroundsInput backgroundsDividers
300
8DC4
#8DC4FC
BordersInactive statesPlaceholder text
400
51A6
#51A6FB
Disabled statesSecondary iconsMuted text
500
1F8C
#1F8CF9
Primary brand colorCTAsActive elementsLinks
600
0670
#0670DB
Hover statesFocus ringsPrimary buttons hover
700
0459
#0459AE
Active/pressed statesDark mode accentsSecondary text
800
0340
#03407C
Text on light backgroundsHeadingsStrong borders
900
0229
#022950
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: #F0F7FF;
  --cobalt-100: #DCEDFE;
  --cobalt-200: #BEDEFD;
  --cobalt-300: #8DC4FC;
  --cobalt-400: #51A6FB;
  --cobalt-500: #1F8CF9;
  --cobalt-600: #0670DB;
  --cobalt-700: #0459AE;
  --cobalt-800: #03407C;
  --cobalt-900: #022950;
  --cobalt-950: #011A32;
}
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