Cobalt

#153A9D

Blue

Color Codes

All color formats for development

HEX
#153A9D
RGB
rgb(21, 58, 157)
HSL
hsl(224, 76%, 35%)
OKLCH
oklch(0.393 0.166 264.2)
CMYK
cmyk(87%, 63%, 0%, 38%)

Accessibility

WCAG contrast compliance

On White Background

9.89:1

AA AAA

On Black Background

2.12:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F5
100
#E0E7
200
#C5D2
300
#98B0
400
#6286
500
#3564
600
#1B48
700
#153A
800
#0F29
900
#0A1A
950
#0610

Shades

Darker variations

1#13348D
2#112E7E
3#0F286E
4#0D235E
5#0B1D4F
6#09173F
7#06112F
8#040C1F
9#020610

Tints

Lighter variations

1#1944BA
2#1D4FD7
3#3362E3
4#5078E7
5#6D8FEB
6#8AA5EF
7#A7BCF3
8#C5D2F7
9#E2E9FB

Tones

Muted variations

1#1C3D96
2#234090
3#2A4389
4#314682
5#37497B
6#3E4D74
7#45506E
8#4C5367
9#525660

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F5
#F2F5FD
BackgroundsSubtle highlightsCard backgrounds
100
E0E7
#E0E7FB
Light backgroundsTable row hoverSkeleton loading
200
C5D2
#C5D2F7
Secondary backgroundsInput backgroundsDividers
300
98B0
#98B0F1
BordersInactive statesPlaceholder text
400
6286
#6286EA
Disabled statesSecondary iconsMuted text
500
3564
#3564E3
Primary brand colorCTAsActive elementsLinks
600
1B48
#1B48C5
Hover statesFocus ringsPrimary buttons hover
700
153A
#153A9D
Active/pressed statesDark mode accentsSecondary text
800
0F29
#0F2970
Text on light backgroundsHeadingsStrong borders
900
0A1A
#0A1A48
Primary textHigh emphasis contentDark headings
950
0610
#06102D
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F5FD;
  --cobalt-100: #E0E7FB;
  --cobalt-200: #C5D2F7;
  --cobalt-300: #98B0F1;
  --cobalt-400: #6286EA;
  --cobalt-500: #3564E3;
  --cobalt-600: #1B48C5;
  --cobalt-700: #153A9D;
  --cobalt-800: #0F2970;
  --cobalt-900: #0A1A48;
  --cobalt-950: #06102D;
}
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