Cobalt

#213B91

Blue

Color Codes

All color formats for development

HEX
#213B91
RGB
rgb(33, 59, 145)
HSL
hsl(226, 63%, 35%)
OKLCH
oklch(0.389 0.146 266.6)
CMYK
cmyk(77%, 59%, 0%, 43%)

Accessibility

WCAG contrast compliance

On White Background

10.00:1

AA AAA

On Black Background

2.10:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E2E7
200
#C9D3
300
#9FB1
400
#6E88
500
#4466
600
#2A4B
700
#213B
800
#182A
900
#0F1B
950
#0911

Shades

Darker variations

1#1E3583
2#1A2F74
3#172966
4#142457
5#111E49
6#0D183A
7#0A122C
8#070C1D
9#03060F

Tints

Lighter variations

1#2746AC
2#2D51C8
3#4264D4
4#5D7ADA
5#7890E0
6#93A6E6
7#AEBDED
8#C9D3F3
9#E4E9F9

Tones

Muted variations

1#273E8C
2#2C4186
3#324481
4#38477B
5#3D4A75
6#434D70
7#48506A
8#4E5364
9#54565F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E2E7
#E2E7F8
Light backgroundsTable row hoverSkeleton loading
200
C9D3
#C9D3F3
Secondary backgroundsInput backgroundsDividers
300
9FB1
#9FB1E9
BordersInactive statesPlaceholder text
400
6E88
#6E88DE
Disabled statesSecondary iconsMuted text
500
4466
#4466D5
Primary brand colorCTAsActive elementsLinks
600
2A4B
#2A4BB7
Hover statesFocus ringsPrimary buttons hover
700
213B
#213B91
Active/pressed statesDark mode accentsSecondary text
800
182A
#182A68
Text on light backgroundsHeadingsStrong borders
900
0F1B
#0F1B43
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: #E2E7F8;
  --cobalt-200: #C9D3F3;
  --cobalt-300: #9FB1E9;
  --cobalt-400: #6E88DE;
  --cobalt-500: #4466D5;
  --cobalt-600: #2A4BB7;
  --cobalt-700: #213B91;
  --cobalt-800: #182A68;
  --cobalt-900: #0F1B43;
  --cobalt-950: #09112A;
}
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