Cobalt

#1555CB

Blue

Color Codes

All color formats for development

HEX
#1555CB
RGB
rgb(21, 85, 203)
HSL
hsl(219, 81%, 44%)
OKLCH
oklch(0.488 0.194 261.5)
CMYK
cmyk(90%, 58%, 0%, 20%)

Accessibility

WCAG contrast compliance

On White Background

6.58:1

AA AAA

On Black Background

3.19:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F5
100
#DFE9
200
#C3D6
300
#95B6
400
#5D90
500
#2F70
600
#1555
700
#1144
800
#0C30
900
#081F
950
#0513

Shades

Darker variations

1#134CB7
2#1144A2
3#0F3B8E
4#0D337A
5#0B2A66
6#092251
7#06193D
8#041129
9#020814

Tints

Lighter variations

1#1860E5
2#3071E9
3#4A83EC
4#6494EF
5#7EA6F1
6#98B8F4
7#B1CAF7
8#CBDBFA
9#E5EDFC

Tones

Muted variations

1#1E58C2
2#275AB9
3#315DB0
4#3A60A7
5#43639E
6#4C6595
7#55688B
8#5E6B82
9#676D79

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F5
#F1F5FE
BackgroundsSubtle highlightsCard backgrounds
100
DFE9
#DFE9FC
Light backgroundsTable row hoverSkeleton loading
200
C3D6
#C3D6F9
Secondary backgroundsInput backgroundsDividers
300
95B6
#95B6F4
BordersInactive statesPlaceholder text
400
5D90
#5D90EE
Disabled statesSecondary iconsMuted text
500
2F70
#2F70E9
Primary brand colorCTAsActive elementsLinks
600
1555
#1555CB
Hover statesFocus ringsPrimary buttons hover
700
1144
#1144A2
Active/pressed statesDark mode accentsSecondary text
800
0C30
#0C3073
Text on light backgroundsHeadingsStrong borders
900
081F
#081F4A
Primary textHigh emphasis contentDark headings
950
0513
#05132E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F5FE;
  --cobalt-100: #DFE9FC;
  --cobalt-200: #C3D6F9;
  --cobalt-300: #95B6F4;
  --cobalt-400: #5D90EE;
  --cobalt-500: #2F70E9;
  --cobalt-600: #1555CB;
  --cobalt-700: #1144A2;
  --cobalt-800: #0C3073;
  --cobalt-900: #081F4A;
  --cobalt-950: #05132E;
}
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