Cobalt

#0337B0

Blue

Color Codes

All color formats for development

HEX
#0337B0
RGB
rgb(3, 55, 176)
HSL
hsl(222, 97%, 35%)
OKLCH
oklch(0.403 0.197 263.1)
CMYK
cmyk(98%, 69%, 0%, 31%)

Accessibility

WCAG contrast compliance

On White Background

9.65:1

AA AAA

On Black Background

2.18:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F4
100
#DCE6
200
#BED1
300
#8BAE
400
#4F83
500
#1D60
600
#0345
700
#0337
800
#0227
900
#0119
950
#0110

Shades

Darker variations

1#02319E
2#022C8D
3#02267B
4#022169
5#011B58
6#011646
7#011035
8#010B23
9#000512

Tints

Lighter variations

1#0341D0
2#044BF1
3#1A5EFC
4#3B75FC
5#5C8CFD
6#7CA3FD
7#9DBAFE
8#BED1FE
9#DEE8FF

Tones

Muted variations

1#0B3AA7
2#143E9F
3#1D4196
4#25448D
5#2E4885
6#374B7C
7#3F4F73
8#48526B
9#515662

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F4
#F0F4FF
BackgroundsSubtle highlightsCard backgrounds
100
DCE6
#DCE6FE
Light backgroundsTable row hoverSkeleton loading
200
BED1
#BED1FE
Secondary backgroundsInput backgroundsDividers
300
8BAE
#8BAEFD
BordersInactive statesPlaceholder text
400
4F83
#4F83FC
Disabled statesSecondary iconsMuted text
500
1D60
#1D60FC
Primary brand colorCTAsActive elementsLinks
600
0345
#0345DD
Hover statesFocus ringsPrimary buttons hover
700
0337
#0337B0
Active/pressed statesDark mode accentsSecondary text
800
0227
#02277E
Text on light backgroundsHeadingsStrong borders
900
0119
#011950
Primary textHigh emphasis contentDark headings
950
0110
#011032
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F4FF;
  --cobalt-100: #DCE6FE;
  --cobalt-200: #BED1FE;
  --cobalt-300: #8BAEFD;
  --cobalt-400: #4F83FC;
  --cobalt-500: #1D60FC;
  --cobalt-600: #0345DD;
  --cobalt-700: #0337B0;
  --cobalt-800: #02277E;
  --cobalt-900: #011950;
  --cobalt-950: #011032;
}
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