Cobalt

#0F54A3

Blue

Color Codes

All color formats for development

HEX
#0F54A3
RGB
rgb(15, 84, 163)
HSL
hsl(212, 83%, 35%)
OKLCH
oklch(0.453 0.143 255.9)
CMYK
cmyk(91%, 48%, 0%, 36%)

Accessibility

WCAG contrast compliance

On White Background

7.45:1

AA AAA

On Black Background

2.82:1

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#0E4C93
2#0C4383
3#0B3B72
4#093362
5#082A52
6#062241
7#051931
8#031121
9#020810

Tints

Lighter variations

1#1264C2
2#1574E0
3#2B85EB
4#4996EE
5#67A8F1
6#86B9F4
7#A4CBF7
8#C2DCF9
9#E1EEFC

Tones

Muted variations

1#17559C
2#1E5595
3#25568D
4#2D5686
5#34577E
6#3C5777
7#43586F
8#4A5868
9#525961

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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