Cobalt

#2138C0

Blue

Color Codes

All color formats for development

HEX
#2138C0
RGB
rgb(33, 56, 192)
HSL
hsl(231, 71%, 44%)
OKLCH
oklch(0.428 0.211 267.6)
CMYK
cmyk(83%, 71%, 0%, 25%)

Accessibility

WCAG contrast compliance

On White Background

8.78:1

AA AAA

On Black Background

2.39:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F4
100
#E0E4
200
#C6CD
300
#9BA7
400
#6679
500
#3B53
600
#2138
700
#1A2D
800
#1220
900
#0C15
950
#070D

Shades

Darker variations

1#1D33AD
2#1A2D99
3#172886
4#142273
5#101C60
6#0D174D
7#0A113A
8#070B26
9#030613

Tints

Lighter variations

1#2540D8
2#3C54DE
3#5469E2
4#6C7FE6
5#8594EA
6#9DA9EE
7#B6BFF3
8#CED4F7
9#E7EAFB

Tones

Muted variations

1#293EB8
2#3044B0
3#3849A8
4#404FA0
5#485498
6#505A90
7#585F88
8#606580
9#686B78

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F4
#F2F4FD
BackgroundsSubtle highlightsCard backgrounds
100
E0E4
#E0E4FA
Light backgroundsTable row hoverSkeleton loading
200
C6CD
#C6CDF5
Secondary backgroundsInput backgroundsDividers
300
9BA7
#9BA7EE
BordersInactive statesPlaceholder text
400
6679
#6679E5
Disabled statesSecondary iconsMuted text
500
3B53
#3B53DE
Primary brand colorCTAsActive elementsLinks
600
2138
#2138C0
Hover statesFocus ringsPrimary buttons hover
700
1A2D
#1A2D99
Active/pressed statesDark mode accentsSecondary text
800
1220
#12206D
Text on light backgroundsHeadingsStrong borders
900
0C15
#0C1546
Primary textHigh emphasis contentDark headings
950
070D
#070D2C
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F4FD;
  --cobalt-100: #E0E4FA;
  --cobalt-200: #C6CDF5;
  --cobalt-300: #9BA7EE;
  --cobalt-400: #6679E5;
  --cobalt-500: #3B53DE;
  --cobalt-600: #2138C0;
  --cobalt-700: #1A2D99;
  --cobalt-800: #12206D;
  --cobalt-900: #0C1546;
  --cobalt-950: #070D2C;
}
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