Cobalt

#2A3589

Blue

Color Codes

All color formats for development

HEX
#2A3589
RGB
rgb(42, 53, 137)
HSL
hsl(233, 53%, 35%)
OKLCH
oklch(0.374 0.139 272.1)
CMYK
cmyk(69%, 61%, 0%, 46%)

Accessibility

WCAG contrast compliance

On White Background

10.67:1

AA AAA

On Black Background

1.97:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F4
100
#E4E6
200
#CCD0
300
#A5AD
400
#7681
500
#4F5E
600
#3543
700
#2A35
800
#1E26
900
#1318
950
#0C0F

Shades

Darker variations

1#26307B
2#222A6D
3#1D2560
4#192052
5#151A44
6#111537
7#0D1029
8#080B1B
9#04050E

Tints

Lighter variations

1#323FA2
2#3A49BB
3#4D5CC8
4#6773D0
5#808AD8
6#9AA2E0
7#B3B9E8
8#CCD0EF
9#E6E8F7

Tones

Muted variations

1#2F3984
2#333C7F
3#38407A
4#3D4376
5#424771
6#464B6C
7#4B4E67
8#505263
9#55565E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F4
#F3F4FB
BackgroundsSubtle highlightsCard backgrounds
100
E4E6
#E4E6F7
Light backgroundsTable row hoverSkeleton loading
200
CCD0
#CCD0EF
Secondary backgroundsInput backgroundsDividers
300
A5AD
#A5ADE3
BordersInactive statesPlaceholder text
400
7681
#7681D5
Disabled statesSecondary iconsMuted text
500
4F5E
#4F5EC9
Primary brand colorCTAsActive elementsLinks
600
3543
#3543AC
Hover statesFocus ringsPrimary buttons hover
700
2A35
#2A3589
Active/pressed statesDark mode accentsSecondary text
800
1E26
#1E2662
Text on light backgroundsHeadingsStrong borders
900
1318
#13183E
Primary textHigh emphasis contentDark headings
950
0C0F
#0C0F27
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F4FB;
  --cobalt-100: #E4E6F7;
  --cobalt-200: #CCD0EF;
  --cobalt-300: #A5ADE3;
  --cobalt-400: #7681D5;
  --cobalt-500: #4F5EC9;
  --cobalt-600: #3543AC;
  --cobalt-700: #2A3589;
  --cobalt-800: #1E2662;
  --cobalt-900: #13183E;
  --cobalt-950: #0C0F27;
}
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