Cobalt

#0B3C74

Blue

Color Codes

All color formats for development

HEX
#0B3C74
RGB
rgb(11, 60, 116)
HSL
hsl(212, 83%, 25%)
OKLCH
oklch(0.359 0.108 255.4)
CMYK
cmyk(91%, 48%, 0%, 55%)

Accessibility

WCAG contrast compliance

On White Background

10.98:1

AA AAA

On Black Background

1.91:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F7
100
#DEEC
200
#C2DC
300
#94C1
400
#5CA1
500
#2D86
600
#136A
700
#0F54
800
#0B3C
900
#0727
950
#0418

Shades

Darker variations

1#0A3669
2#09305D
3#082A52
4#072446
5#051E3A
6#04182F
7#031223
8#020C17
9#01060C

Tints

Lighter variations

1#0E4E98
2#1160BB
3#1572DE
4#2D86EB
5#509AEF
6#73AEF2
7#96C2F5
8#B9D7F8
9#DCEBFC

Tones

Muted variations

1#103D6F
2#153D6A
3#1B3D65
4#203E5F
5#253E5A
6#2B3E55
7#303F50
8#353F4A
9#3A3F45

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F7
#F1F7FE
BackgroundsSubtle highlightsCard backgrounds
100
DEEC
#DEECFC
Light backgroundsTable row hoverSkeleton loading
200
C2DC
#C2DCF9
Secondary backgroundsInput backgroundsDividers
300
94C1
#94C1F5
BordersInactive statesPlaceholder text
400
5CA1
#5CA1F0
Disabled statesSecondary iconsMuted text
500
2D86
#2D86EB
Primary brand colorCTAsActive elementsLinks
600
136A
#136ACD
Hover statesFocus ringsPrimary buttons hover
700
0F54
#0F54A3
Active/pressed statesDark mode accentsSecondary text
800
0B3C
#0B3C75
Text on light backgroundsHeadingsStrong borders
900
0727
#07274B
Primary textHigh emphasis contentDark headings
950
0418
#04182F
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F7FE;
  --cobalt-100: #DEECFC;
  --cobalt-200: #C2DCF9;
  --cobalt-300: #94C1F5;
  --cobalt-400: #5CA1F0;
  --cobalt-500: #2D86EB;
  --cobalt-600: #136ACD;
  --cobalt-700: #0F54A3;
  --cobalt-800: #0B3C75;
  --cobalt-900: #07274B;
  --cobalt-950: #04182F;
}
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