Cobalt

#3F45A2

Blue

Color Codes

All color formats for development

HEX
#3F45A2
RGB
rgb(63, 69, 162)
HSL
hsl(236, 44%, 44%)
OKLCH
oklch(0.44 0.148 275.7)
CMYK
cmyk(61%, 57%, 0%, 36%)

Accessibility

WCAG contrast compliance

On White Background

8.13:1

AA AAA

On Black Background

2.58:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F4F4
100
#E5E6
200
#CFD1
300
#ABAE
400
#7E84
500
#5A60
600
#3F45
700
#3237
800
#2427
900
#1719
950
#0E10

Shades

Darker variations

1#393E91
2#323881
3#2C3171
4#262A61
5#1F2351
6#191C41
7#131530
8#0D0E20
9#060710

Tints

Lighter variations

1#474EB6
2#5A61BF
3#6F75C7
4#8489CF
5#989CD7
6#ADB0DF
7#C1C4E7
8#D6D8EF
9#EAEBF7

Tones

Muted variations

1#444A9D
2#494E98
3#4E5293
4#53578E
5#585B89
6#5C5F84
7#61637F
8#66687A
9#6B6C75

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F4F4
#F4F4FB
BackgroundsSubtle highlightsCard backgrounds
100
E5E6
#E5E6F5
Light backgroundsTable row hoverSkeleton loading
200
CFD1
#CFD1EC
Secondary backgroundsInput backgroundsDividers
300
ABAE
#ABAEDE
BordersInactive statesPlaceholder text
400
7E84
#7E84CD
Disabled statesSecondary iconsMuted text
500
5A60
#5A60BF
Primary brand colorCTAsActive elementsLinks
600
3F45
#3F45A2
Hover statesFocus ringsPrimary buttons hover
700
3237
#323781
Active/pressed statesDark mode accentsSecondary text
800
2427
#24275C
Text on light backgroundsHeadingsStrong borders
900
1719
#17193B
Primary textHigh emphasis contentDark headings
950
0E10
#0E1025
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F4F4FB;
  --cobalt-100: #E5E6F5;
  --cobalt-200: #CFD1EC;
  --cobalt-300: #ABAEDE;
  --cobalt-400: #7E84CD;
  --cobalt-500: #5A60BF;
  --cobalt-600: #3F45A2;
  --cobalt-700: #323781;
  --cobalt-800: #24275C;
  --cobalt-900: #17193B;
  --cobalt-950: #0E1025;
}
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