Cobalt

#133DA0

Blue

Color Codes

All color formats for development

HEX
#133DA0
RGB
rgb(19, 61, 160)
HSL
hsl(222, 79%, 35%)
OKLCH
oklch(0.401 0.167 263.4)
CMYK
cmyk(88%, 62%, 0%, 37%)

Accessibility

WCAG contrast compliance

On White Background

9.53:1

AA AAA

On Black Background

2.20:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F5
100
#DFE8
200
#C4D3
300
#96B2
400
#5F8A
500
#3268
600
#184D
700
#133D
800
#0D2C
900
#091C
950
#0511

Shades

Darker variations

1#113790
2#0F3180
3#0D2B70
4#0B2560
5#091F50
6#071840
7#061230
8#040C20
9#020610

Tints

Lighter variations

1#1648BD
2#1A54DB
3#2F66E7
4#4D7CEA
5#6B92EE
6#88A8F1
7#A6BEF5
8#C4D3F8
9#E1E9FC

Tones

Muted variations

1#1A4099
2#214392
3#28468B
4#2F4884
5#364B7D
6#3D4E75
7#44516E
8#4B5467
9#525660

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F5
#F1F5FD
BackgroundsSubtle highlightsCard backgrounds
100
DFE8
#DFE8FB
Light backgroundsTable row hoverSkeleton loading
200
C4D3
#C4D3F8
Secondary backgroundsInput backgroundsDividers
300
96B2
#96B2F3
BordersInactive statesPlaceholder text
400
5F8A
#5F8AEC
Disabled statesSecondary iconsMuted text
500
3268
#3268E7
Primary brand colorCTAsActive elementsLinks
600
184D
#184DC9
Hover statesFocus ringsPrimary buttons hover
700
133D
#133DA0
Active/pressed statesDark mode accentsSecondary text
800
0D2C
#0D2C72
Text on light backgroundsHeadingsStrong borders
900
091C
#091C49
Primary textHigh emphasis contentDark headings
950
0511
#05112E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F5FD;
  --cobalt-100: #DFE8FB;
  --cobalt-200: #C4D3F8;
  --cobalt-300: #96B2F3;
  --cobalt-400: #5F8AEC;
  --cobalt-500: #3268E7;
  --cobalt-600: #184DC9;
  --cobalt-700: #133DA0;
  --cobalt-800: #0D2C72;
  --cobalt-900: #091C49;
  --cobalt-950: #05112E;
}
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