Cobalt

#02337E

Blue

Color Codes

All color formats for development

HEX
#02337E
RGB
rgb(2, 51, 126)
HSL
hsl(216, 97%, 25%)
OKLCH
oklch(0.345 0.136 259.9)
CMYK
cmyk(98%, 60%, 0%, 51%)

Accessibility

WCAG contrast compliance

On White Background

11.82:1

AA AAA

On Black Background

1.78:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F6
100
#DCEA
200
#BED7
300
#8BB9
400
#4F94
500
#1D76
600
#035A
700
#0348
800
#0233
900
#0121
950
#0115

Shades

Darker variations

1#022E71
2#022964
3#012458
4#011F4B
5#011A3F
6#011532
7#010F26
8#000A19
9#00050D

Tints

Lighter variations

1#0243A3
2#0352C9
3#0462EF
4#1D76FC
5#438DFC
6#68A4FD
7#8EBAFD
8#B4D1FE
9#D9E8FE

Tones

Muted variations

1#083577
2#0E3671
3#14376B
4#1B3865
5#213A5F
6#273B58
7#2D3C52
8#333D4C
9#3A3F46

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F6
#F0F6FF
BackgroundsSubtle highlightsCard backgrounds
100
DCEA
#DCEAFE
Light backgroundsTable row hoverSkeleton loading
200
BED7
#BED7FE
Secondary backgroundsInput backgroundsDividers
300
8BB9
#8BB9FD
BordersInactive statesPlaceholder text
400
4F94
#4F94FC
Disabled statesSecondary iconsMuted text
500
1D76
#1D76FC
Primary brand colorCTAsActive elementsLinks
600
035A
#035ADD
Hover statesFocus ringsPrimary buttons hover
700
0348
#0348B0
Active/pressed statesDark mode accentsSecondary text
800
0233
#02337E
Text on light backgroundsHeadingsStrong borders
900
0121
#012150
Primary textHigh emphasis contentDark headings
950
0115
#011532
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F6FF;
  --cobalt-100: #DCEAFE;
  --cobalt-200: #BED7FE;
  --cobalt-300: #8BB9FD;
  --cobalt-400: #4F94FC;
  --cobalt-500: #1D76FC;
  --cobalt-600: #035ADD;
  --cobalt-700: #0348B0;
  --cobalt-800: #02337E;
  --cobalt-900: #012150;
  --cobalt-950: #011532;
}
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