Cobalt

#1B3E98

Blue

Color Codes

All color formats for development

HEX
#1B3E98
RGB
rgb(27, 62, 152)
HSL
hsl(223, 70%, 35%)
OKLCH
oklch(0.399 0.153 264.3)
CMYK
cmyk(82%, 59%, 0%, 40%)

Accessibility

WCAG contrast compliance

On White Background

9.59:1

AA AAA

On Black Background

2.19:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F5
100
#E1E8
200
#C7D4
300
#9BB3
400
#678B
500
#3C69
600
#224E
700
#1B3E
800
#132C
900
#0C1C
950
#0812

Shades

Darker variations

1#183889
2#153279
3#132C6A
4#10255B
5#0D1F4C
6#0B193D
7#08132E
8#050C1E
9#03060F

Tints

Lighter variations

1#204AB4
2#2555D0
3#3A68DC
4#567DE1
5#7293E6
6#8EA9EB
7#AABEF0
8#C7D4F5
9#E3E9FA

Tones

Muted variations

1#214191
2#27448B
3#2E4685
4#34497F
5#3A4C78
6#404E72
7#47516C
8#4D5466
9#53575F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F5
#F2F5FD
BackgroundsSubtle highlightsCard backgrounds
100
E1E8
#E1E8FA
Light backgroundsTable row hoverSkeleton loading
200
C7D4
#C7D4F5
Secondary backgroundsInput backgroundsDividers
300
9BB3
#9BB3ED
BordersInactive statesPlaceholder text
400
678B
#678BE4
Disabled statesSecondary iconsMuted text
500
3C69
#3C69DD
Primary brand colorCTAsActive elementsLinks
600
224E
#224EBF
Hover statesFocus ringsPrimary buttons hover
700
1B3E
#1B3E98
Active/pressed statesDark mode accentsSecondary text
800
132C
#132C6C
Text on light backgroundsHeadingsStrong borders
900
0C1C
#0C1C45
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: #E1E8FA;
  --cobalt-200: #C7D4F5;
  --cobalt-300: #9BB3ED;
  --cobalt-400: #678BE4;
  --cobalt-500: #3C69DD;
  --cobalt-600: #224EBF;
  --cobalt-700: #1B3E98;
  --cobalt-800: #132C6C;
  --cobalt-900: #0C1C45;
  --cobalt-950: #08122B;
}
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