Cobalt

#2121C0

Blue

Color Codes

All color formats for development

HEX
#2121C0
RGB
rgb(33, 33, 192)
HSL
hsl(240, 71%, 44%)
OKLCH
oklch(0.397 0.231 269.3)
CMYK
cmyk(83%, 83%, 0%, 25%)

Accessibility

WCAG contrast compliance

On White Background

10.28:1

AA AAA

On Black Background

2.04:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F2
100
#E0E0
200
#C6C6
300
#9B9B
400
#6666
500
#3B3B
600
#2121
700
#1A1A
800
#1212
900
#0C0C
950
#0707

Shades

Darker variations

1#1D1DAD
2#1A1A99
3#171786
4#141473
5#101060
6#0D0D4D
7#0A0A3A
8#070726
9#030313

Tints

Lighter variations

1#2525D8
2#3C3CDE
3#5454E2
4#6C6CE6
5#8585EA
6#9D9DEE
7#B6B6F3
8#CECEF7
9#E7E7FB

Tones

Muted variations

1#2929B8
2#3030B0
3#3838A8
4#4040A0
5#484898
6#505090
7#585888
8#606080
9#686878

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F2
#F2F2FD
BackgroundsSubtle highlightsCard backgrounds
100
E0E0
#E0E0FA
Light backgroundsTable row hoverSkeleton loading
200
C6C6
#C6C6F5
Secondary backgroundsInput backgroundsDividers
300
9B9B
#9B9BEE
BordersInactive statesPlaceholder text
400
6666
#6666E5
Disabled statesSecondary iconsMuted text
500
3B3B
#3B3BDE
Primary brand colorCTAsActive elementsLinks
600
2121
#2121C0
Hover statesFocus ringsPrimary buttons hover
700
1A1A
#1A1A99
Active/pressed statesDark mode accentsSecondary text
800
1212
#12126D
Text on light backgroundsHeadingsStrong borders
900
0C0C
#0C0C46
Primary textHigh emphasis contentDark headings
950
0707
#07072C
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F2FD;
  --cobalt-100: #E0E0FA;
  --cobalt-200: #C6C6F5;
  --cobalt-300: #9B9BEE;
  --cobalt-400: #6666E5;
  --cobalt-500: #3B3BDE;
  --cobalt-600: #2121C0;
  --cobalt-700: #1A1A99;
  --cobalt-800: #12126D;
  --cobalt-900: #0C0C46;
  --cobalt-950: #07072C;
}
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