Cobalt

#234FBE

Blue

Color Codes

All color formats for development

HEX
#234FBE
RGB
rgb(35, 79, 190)
HSL
hsl(223, 69%, 44%)
OKLCH
oklch(0.469 0.181 264.1)
CMYK
cmyk(82%, 58%, 0%, 25%)

Accessibility

WCAG contrast compliance

On White Background

7.16:1

AA AAA

On Black Background

2.93:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F5
100
#E1E8
200
#C7D4
300
#9CB3
400
#688B
500
#3D6A
600
#234F
700
#1C3F
800
#142D
900
#0D1D
950
#0812

Shades

Darker variations

1#1F47AB
2#1C3F98
3#183785
4#152F72
5#11275F
6#0E1F4C
7#0A1839
8#071026
9#030813

Tints

Lighter variations

1#2759D6
2#3E6BDC
3#567DE0
4#6E90E4
5#86A2E9
6#9EB5ED
7#B7C7F2
8#CFDAF6
9#E7ECFB

Tones

Muted variations

1#2B52B6
2#3255AE
3#3A59A6
4#425C9F
5#495F97
6#51638F
7#596687
8#616980
9#686D78

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F5
#F2F5FD
BackgroundsSubtle highlightsCard backgrounds
100
E1E8
#E1E8F9
Light backgroundsTable row hoverSkeleton loading
200
C7D4
#C7D4F5
Secondary backgroundsInput backgroundsDividers
300
9CB3
#9CB3ED
BordersInactive statesPlaceholder text
400
688B
#688BE3
Disabled statesSecondary iconsMuted text
500
3D6A
#3D6ADB
Primary brand colorCTAsActive elementsLinks
600
234F
#234FBE
Hover statesFocus ringsPrimary buttons hover
700
1C3F
#1C3F97
Active/pressed statesDark mode accentsSecondary text
800
142D
#142D6C
Text on light backgroundsHeadingsStrong borders
900
0D1D
#0D1D45
Primary textHigh emphasis contentDark headings
950
0812
#08122B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F5FD;
  --cobalt-100: #E1E8F9;
  --cobalt-200: #C7D4F5;
  --cobalt-300: #9CB3ED;
  --cobalt-400: #688BE3;
  --cobalt-500: #3D6ADB;
  --cobalt-600: #234FBE;
  --cobalt-700: #1C3F97;
  --cobalt-800: #142D6C;
  --cobalt-900: #0D1D45;
  --cobalt-950: #08122B;
}
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