Cobalt

#2555BB

Blue

Color Codes

All color formats for development

HEX
#2555BB
RGB
rgb(37, 85, 187)
HSL
hsl(221, 67%, 44%)
OKLCH
oklch(0.479 0.17 262.8)
CMYK
cmyk(80%, 55%, 0%, 27%)

Accessibility

WCAG contrast compliance

On White Background

6.78:1

AA AAA

On Black Background

3.10:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F5
100
#E1E9
200
#C8D6
300
#9DB6
400
#6A90
500
#3F70
600
#2555
700
#1D43
800
#1530
900
#0D1F
950
#0813

Shades

Darker variations

1#214CA9
2#1E4496
3#1A3B83
4#163370
5#132A5E
6#0F224B
7#0B1938
8#071125
9#040813

Tints

Lighter variations

1#2A5FD3
2#4071D9
3#5882DE
4#7094E3
5#88A6E7
6#A0B8EC
7#B7CAF1
8#CFDBF6
9#E7EDFA

Tones

Muted variations

1#2D57B4
2#345AAC
3#3C5DA5
4#43609D
5#4B6296
6#52658E
7#5A6887
8#616B7F
9#696D78

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F5
#F2F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E1E9
#E1E9F9
Light backgroundsTable row hoverSkeleton loading
200
C8D6
#C8D6F4
Secondary backgroundsInput backgroundsDividers
300
9DB6
#9DB6EC
BordersInactive statesPlaceholder text
400
6A90
#6A90E2
Disabled statesSecondary iconsMuted text
500
3F70
#3F70D9
Primary brand colorCTAsActive elementsLinks
600
2555
#2555BB
Hover statesFocus ringsPrimary buttons hover
700
1D43
#1D4395
Active/pressed statesDark mode accentsSecondary text
800
1530
#15306A
Text on light backgroundsHeadingsStrong borders
900
0D1F
#0D1F44
Primary textHigh emphasis contentDark headings
950
0813
#08132B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F5FC;
  --cobalt-100: #E1E9F9;
  --cobalt-200: #C8D6F4;
  --cobalt-300: #9DB6EC;
  --cobalt-400: #6A90E2;
  --cobalt-500: #3F70D9;
  --cobalt-600: #2555BB;
  --cobalt-700: #1D4395;
  --cobalt-800: #15306A;
  --cobalt-900: #0D1F44;
  --cobalt-950: #08132B;
}
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