Cobalt

#181BC9

Blue

Color Codes

All color formats for development

HEX
#181BC9
RGB
rgb(24, 27, 201)
HSL
hsl(239, 79%, 44%)
OKLCH
oklch(0.399 0.247 267.2)
CMYK
cmyk(88%, 87%, 0%, 21%)

Accessibility

WCAG contrast compliance

On White Background

10.30:1

AA AAA

On Black Background

2.04:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F2
100
#DFE0
200
#C4C5
300
#9698
400
#5F62
500
#3235
600
#181B
700
#1315
800
#0D0F
900
#090A
950
#0506

Shades

Darker variations

1#1518B5
2#1315A1
3#10138D
4#0E1079
5#0C0D64
6#090B50
7#07083C
8#050528
9#020314

Tints

Lighter variations

1#1B1EE2
2#3336E7
3#4C4FEA
4#6668ED
5#7F81F0
6#999AF3
7#B2B3F6
8#CCCDF9
9#E5E6FC

Tones

Muted variations

1#2023C0
2#292CB7
3#3234AE
4#3B3DA5
5#44459D
6#4D4E94
7#56568B
8#5E5F82
9#676879

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F2
#F1F2FD
BackgroundsSubtle highlightsCard backgrounds
100
DFE0
#DFE0FB
Light backgroundsTable row hoverSkeleton loading
200
C4C5
#C4C5F8
Secondary backgroundsInput backgroundsDividers
300
9698
#9698F3
BordersInactive statesPlaceholder text
400
5F62
#5F62EC
Disabled statesSecondary iconsMuted text
500
3235
#3235E7
Primary brand colorCTAsActive elementsLinks
600
181B
#181BC9
Hover statesFocus ringsPrimary buttons hover
700
1315
#1315A0
Active/pressed statesDark mode accentsSecondary text
800
0D0F
#0D0F72
Text on light backgroundsHeadingsStrong borders
900
090A
#090A49
Primary textHigh emphasis contentDark headings
950
0506
#05062E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F2FD;
  --cobalt-100: #DFE0FB;
  --cobalt-200: #C4C5F8;
  --cobalt-300: #9698F3;
  --cobalt-400: #5F62EC;
  --cobalt-500: #3235E7;
  --cobalt-600: #181BC9;
  --cobalt-700: #1315A0;
  --cobalt-800: #0D0F72;
  --cobalt-900: #090A49;
  --cobalt-950: #05062E;
}
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