Cobalt

#153E9E

Blue

Color Codes

All color formats for development

HEX
#153E9E
RGB
rgb(21, 62, 158)
HSL
hsl(222, 77%, 35%)
OKLCH
oklch(0.402 0.163 263.4)
CMYK
cmyk(87%, 61%, 0%, 38%)

Accessibility

WCAG contrast compliance

On White Background

9.48:1

AA AAA

On Black Background

2.21:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F5
100
#DFE8
200
#C4D4
300
#97B2
400
#618A
500
#3469
600
#1A4E
700
#153E
800
#0F2C
900
#091C
950
#0612

Shades

Darker variations

1#12388E
2#10317E
3#0E2B6F
4#0C255F
5#0A1F4F
6#08193F
7#06132F
8#040C20
9#020610

Tints

Lighter variations

1#1849BB
2#1C55D9
3#3267E4
4#4F7DE8
5#6C93EC
6#8AA8F0
7#A7BEF4
8#C4D4F7
9#E2E9FB

Tones

Muted variations

1#1B4197
2#224390
3#294689
4#304982
5#374C7C
6#3E4E75
7#45516E
8#4C5467
9#525760

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F5
#F1F5FD
BackgroundsSubtle highlightsCard backgrounds
100
DFE8
#DFE8FB
Light backgroundsTable row hoverSkeleton loading
200
C4D4
#C4D4F7
Secondary backgroundsInput backgroundsDividers
300
97B2
#97B2F2
BordersInactive statesPlaceholder text
400
618A
#618AEA
Disabled statesSecondary iconsMuted text
500
3469
#3469E5
Primary brand colorCTAsActive elementsLinks
600
1A4E
#1A4EC7
Hover statesFocus ringsPrimary buttons hover
700
153E
#153E9E
Active/pressed statesDark mode accentsSecondary text
800
0F2C
#0F2C71
Text on light backgroundsHeadingsStrong borders
900
091C
#091C48
Primary textHigh emphasis contentDark headings
950
0612
#06122D
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F5FD;
  --cobalt-100: #DFE8FB;
  --cobalt-200: #C4D4F7;
  --cobalt-300: #97B2F2;
  --cobalt-400: #618AEA;
  --cobalt-500: #3469E5;
  --cobalt-600: #1A4EC7;
  --cobalt-700: #153E9E;
  --cobalt-800: #0F2C71;
  --cobalt-900: #091C48;
  --cobalt-950: #06122D;
}
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