Cobalt

#243DBC

Blue

Color Codes

All color formats for development

HEX
#243DBC
RGB
rgb(36, 61, 188)
HSL
hsl(230, 68%, 44%)
OKLCH
oklch(0.434 0.2 267.7)
CMYK
cmyk(81%, 68%, 0%, 26%)

Accessibility

WCAG contrast compliance

On White Background

8.51:1

AA AAA

On Black Background

2.47:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F4
100
#E1E5
200
#C7CF
300
#9CAA
400
#697D
500
#3E58
600
#243D
700
#1D31
800
#1423
900
#0D16
950
#080E

Shades

Darker variations

1#2037AA
2#1D3197
3#192B84
4#162571
5#121F5E
6#0E194B
7#0B1239
8#070C26
9#040613

Tints

Lighter variations

1#2845D4
2#3F59DA
3#576EDF
4#6F82E4
5#8797E8
6#9FACED
7#B7C1F1
8#CFD5F6
9#E7EAFA

Tones

Muted variations

1#2C42B5
2#3348AD
3#3B4DA6
4#42529E
5#4A5796
6#525C8F
7#596187
8#61667F
9#696B78

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F4
#F2F4FD
BackgroundsSubtle highlightsCard backgrounds
100
E1E5
#E1E5F9
Light backgroundsTable row hoverSkeleton loading
200
C7CF
#C7CFF4
Secondary backgroundsInput backgroundsDividers
300
9CAA
#9CAAEC
BordersInactive statesPlaceholder text
400
697D
#697DE2
Disabled statesSecondary iconsMuted text
500
3E58
#3E58DA
Primary brand colorCTAsActive elementsLinks
600
243D
#243DBC
Hover statesFocus ringsPrimary buttons hover
700
1D31
#1D3196
Active/pressed statesDark mode accentsSecondary text
800
1423
#14236B
Text on light backgroundsHeadingsStrong borders
900
0D16
#0D1645
Primary textHigh emphasis contentDark headings
950
080E
#080E2B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F4FD;
  --cobalt-100: #E1E5F9;
  --cobalt-200: #C7CFF4;
  --cobalt-300: #9CAAEC;
  --cobalt-400: #697DE2;
  --cobalt-500: #3E58DA;
  --cobalt-600: #243DBC;
  --cobalt-700: #1D3196;
  --cobalt-800: #14236B;
  --cobalt-900: #0D1645;
  --cobalt-950: #080E2B;
}
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