Cobalt

#001BB3

Blue

Color Codes

All color formats for development

HEX
#001BB3
RGB
rgb(0, 27, 179)
HSL
hsl(231, 100%, 35%)
OKLCH
oklch(0.365 0.227 264.2)
CMYK
cmyk(100%, 85%, 0%, 30%)

Accessibility

WCAG contrast compliance

On White Background

11.62:1

AA AAA

On Black Background

1.81:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F2
100
#DBE1
200
#BDC7
300
#8A9B
400
#4D67
500
#1A3C
600
#0022
700
#001B
800
#0013
900
#000C
950
#0008

Shades

Darker variations

1#0018A1
2#00158F
3#00137D
4#00106B
5#000D59
6#000B47
7#000836
8#000524
9#000312

Tints

Lighter variations

1#0020D4
2#0025F5
3#173AFF
4#3856FF
5#5972FF
6#7A8EFF
7#9CAAFF
8#BDC7FF
9#DEE3FF

Tones

Muted variations

1#0921AA
2#1227A1
3#1B2E98
4#24348F
5#2D3A86
6#36407D
7#3E4774
8#474D6B
9#505362

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F2
#F0F2FF
BackgroundsSubtle highlightsCard backgrounds
100
DBE1
#DBE1FF
Light backgroundsTable row hoverSkeleton loading
200
BDC7
#BDC7FF
Secondary backgroundsInput backgroundsDividers
300
8A9B
#8A9BFF
BordersInactive statesPlaceholder text
400
4D67
#4D67FF
Disabled statesSecondary iconsMuted text
500
1A3C
#1A3CFF
Primary brand colorCTAsActive elementsLinks
600
0022
#0022E0
Hover statesFocus ringsPrimary buttons hover
700
001B
#001BB3
Active/pressed statesDark mode accentsSecondary text
800
0013
#001380
Text on light backgroundsHeadingsStrong borders
900
000C
#000C52
Primary textHigh emphasis contentDark headings
950
0008
#000833
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F2FF;
  --cobalt-100: #DBE1FF;
  --cobalt-200: #BDC7FF;
  --cobalt-300: #8A9BFF;
  --cobalt-400: #4D67FF;
  --cobalt-500: #1A3CFF;
  --cobalt-600: #0022E0;
  --cobalt-700: #001BB3;
  --cobalt-800: #001380;
  --cobalt-900: #000C52;
  --cobalt-950: #000833;
}
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