Cobalt

#213D91

Blue

Color Codes

All color formats for development

HEX
#213D91
RGB
rgb(33, 61, 145)
HSL
hsl(225, 63%, 35%)
OKLCH
oklch(0.393 0.143 266)
CMYK
cmyk(77%, 58%, 0%, 43%)

Accessibility

WCAG contrast compliance

On White Background

9.81:1

AA AAA

On Black Background

2.14:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E2E8
200
#C9D3
300
#9FB2
400
#6E8A
500
#4468
600
#2A4D
700
#213D
800
#182C
900
#0F1C
950
#0911

Shades

Darker variations

1#1E3783
2#1A3174
3#172B66
4#142557
5#111F49
6#0D183A
7#0A122C
8#070C1D
9#03060F

Tints

Lighter variations

1#2748AC
2#2D54C8
3#4266D4
4#5D7CDA
5#7892E0
6#93A8E6
7#AEBEED
8#C9D3F3
9#E4E9F9

Tones

Muted variations

1#27408C
2#2C4386
3#324681
4#38487B
5#3D4B75
6#434E70
7#48516A
8#4E5464
9#54565F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E2E8
#E2E8F8
Light backgroundsTable row hoverSkeleton loading
200
C9D3
#C9D3F3
Secondary backgroundsInput backgroundsDividers
300
9FB2
#9FB2E9
BordersInactive statesPlaceholder text
400
6E8A
#6E8ADE
Disabled statesSecondary iconsMuted text
500
4468
#4468D5
Primary brand colorCTAsActive elementsLinks
600
2A4D
#2A4DB7
Hover statesFocus ringsPrimary buttons hover
700
213D
#213D91
Active/pressed statesDark mode accentsSecondary text
800
182C
#182C68
Text on light backgroundsHeadingsStrong borders
900
0F1C
#0F1C43
Primary textHigh emphasis contentDark headings
950
0911
#09112A
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E2E8F8;
  --cobalt-200: #C9D3F3;
  --cobalt-300: #9FB2E9;
  --cobalt-400: #6E8ADE;
  --cobalt-500: #4468D5;
  --cobalt-600: #2A4DB7;
  --cobalt-700: #213D91;
  --cobalt-800: #182C68;
  --cobalt-900: #0F1C43;
  --cobalt-950: #09112A;
}
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