Cobalt

#3153AF

Blue

Color Codes

All color formats for development

HEX
#3153AF
RGB
rgb(49, 83, 175)
HSL
hsl(224, 56%, 44%)
OKLCH
oklch(0.47 0.152 265.6)
CMYK
cmyk(72%, 53%, 0%, 31%)

Accessibility

WCAG contrast compliance

On White Background

7.03:1

AA AAA

On Black Background

2.99:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E3E8
200
#CBD5
300
#A4B5
400
#748E
500
#4C6E
600
#3153
700
#2742
800
#1C2F
900
#121E
950
#0B13

Shades

Darker variations

1#2C4B9E
2#27428C
3#233A7B
4#1E3269
5#192958
6#142146
7#0F1935
8#0A1123
9#050812

Tints

Lighter variations

1#385DC5
2#4D6FCD
3#6381D3
4#7993D9
5#90A5E0
6#A6B7E6
7#BCC9EC
8#D2DBF2
9#E9EDF9

Tones

Muted variations

1#3856A9
2#3E59A2
3#445C9C
4#4B5F96
5#516290
6#576489
7#5D6783
8#646A7D
9#6A6D76

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E3E8
#E3E8F7
Light backgroundsTable row hoverSkeleton loading
200
CBD5
#CBD5F0
Secondary backgroundsInput backgroundsDividers
300
A4B5
#A4B5E5
BordersInactive statesPlaceholder text
400
748E
#748ED8
Disabled statesSecondary iconsMuted text
500
4C6E
#4C6ECD
Primary brand colorCTAsActive elementsLinks
600
3153
#3153AF
Hover statesFocus ringsPrimary buttons hover
700
2742
#27428B
Active/pressed statesDark mode accentsSecondary text
800
1C2F
#1C2F63
Text on light backgroundsHeadingsStrong borders
900
121E
#121E40
Primary textHigh emphasis contentDark headings
950
0B13
#0B1328
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E3E8F7;
  --cobalt-200: #CBD5F0;
  --cobalt-300: #A4B5E5;
  --cobalt-400: #748ED8;
  --cobalt-500: #4C6ECD;
  --cobalt-600: #3153AF;
  --cobalt-700: #27428B;
  --cobalt-800: #1C2F63;
  --cobalt-900: #121E40;
  --cobalt-950: #0B1328;
}
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