Cobalt

#123DA1

Blue

Color Codes

All color formats for development

HEX
#123DA1
RGB
rgb(18, 61, 161)
HSL
hsl(222, 80%, 35%)
OKLCH
oklch(0.402 0.169 263.2)
CMYK
cmyk(89%, 62%, 0%, 37%)

Accessibility

WCAG contrast compliance

On White Background

9.51:1

AA AAA

On Black Background

2.21:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F5
100
#DFE7
200
#C3D3
300
#95B2
400
#5E89
500
#3068
600
#164C
700
#123D
800
#0D2B
900
#081C
950
#0511

Shades

Darker variations

1#103791
2#0E3181
3#0C2A70
4#0B2460
5#091E50
6#071840
7#051230
8#040C20
9#020610

Tints

Lighter variations

1#1548BE
2#1853DC
3#2E66E8
4#4C7CEB
5#6A92EE
6#88A7F2
7#A5BDF5
8#C3D3F8
9#E1E9FC

Tones

Muted variations

1#19409A
2#204292
3#27458B
4#2E4884
5#364B7D
6#3D4E76
7#44516F
8#4B5468
9#525660

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F5
#F1F5FD
BackgroundsSubtle highlightsCard backgrounds
100
DFE7
#DFE7FB
Light backgroundsTable row hoverSkeleton loading
200
C3D3
#C3D3F8
Secondary backgroundsInput backgroundsDividers
300
95B2
#95B2F3
BordersInactive statesPlaceholder text
400
5E89
#5E89ED
Disabled statesSecondary iconsMuted text
500
3068
#3068E8
Primary brand colorCTAsActive elementsLinks
600
164C
#164CCA
Hover statesFocus ringsPrimary buttons hover
700
123D
#123DA1
Active/pressed statesDark mode accentsSecondary text
800
0D2B
#0D2B73
Text on light backgroundsHeadingsStrong borders
900
081C
#081C49
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: #DFE7FB;
  --cobalt-200: #C3D3F8;
  --cobalt-300: #95B2F3;
  --cobalt-400: #5E89ED;
  --cobalt-500: #3068E8;
  --cobalt-600: #164CCA;
  --cobalt-700: #123DA1;
  --cobalt-800: #0D2B73;
  --cobalt-900: #081C49;
  --cobalt-950: #05112E;
}
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