Cobalt

#0F57A3

Blue

Color Codes

All color formats for development

HEX
#0F57A3
RGB
rgb(15, 87, 163)
HSL
hsl(211, 83%, 35%)
OKLCH
oklch(0.46 0.14 254.6)
CMYK
cmyk(91%, 47%, 0%, 36%)

Accessibility

WCAG contrast compliance

On White Background

7.21:1

AA AAA

On Black Background

2.91:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F7
100
#DEED
200
#C2DD
300
#94C3
400
#5CA3
500
#2D89
600
#136D
700
#0F57
800
#0B3E
900
#0728
950
#0419

Shades

Darker variations

1#0E4E93
2#0C4583
3#0B3D72
4#093462
5#082B52
6#062341
7#051A31
8#031121
9#020910

Tints

Lighter variations

1#1267C2
2#1577E0
3#2B88EB
4#4999EE
5#67AAF1
6#86BBF4
7#A4CCF7
8#C2DDF9
9#E1EEFC

Tones

Muted variations

1#17579C
2#1E5795
3#25588D
4#2D5886
5#34587E
6#3C5877
7#43596F
8#4A5968
9#525961

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F7
#F1F7FE
BackgroundsSubtle highlightsCard backgrounds
100
DEED
#DEEDFC
Light backgroundsTable row hoverSkeleton loading
200
C2DD
#C2DDF9
Secondary backgroundsInput backgroundsDividers
300
94C3
#94C3F5
BordersInactive statesPlaceholder text
400
5CA3
#5CA3F0
Disabled statesSecondary iconsMuted text
500
2D89
#2D89EB
Primary brand colorCTAsActive elementsLinks
600
136D
#136DCD
Hover statesFocus ringsPrimary buttons hover
700
0F57
#0F57A3
Active/pressed statesDark mode accentsSecondary text
800
0B3E
#0B3E75
Text on light backgroundsHeadingsStrong borders
900
0728
#07284B
Primary textHigh emphasis contentDark headings
950
0419
#04192F
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F7FE;
  --cobalt-100: #DEEDFC;
  --cobalt-200: #C2DDF9;
  --cobalt-300: #94C3F5;
  --cobalt-400: #5CA3F0;
  --cobalt-500: #2D89EB;
  --cobalt-600: #136DCD;
  --cobalt-700: #0F57A3;
  --cobalt-800: #0B3E75;
  --cobalt-900: #07284B;
  --cobalt-950: #04192F;
}
Generate More ShadesCreate PaletteConvert Color