Cobalt

#183EC9

Blue

Color Codes

All color formats for development

HEX
#183EC9
RGB
rgb(24, 62, 201)
HSL
hsl(227, 79%, 44%)
OKLCH
oklch(0.444 0.217 265.3)
CMYK
cmyk(88%, 69%, 0%, 21%)

Accessibility

WCAG contrast compliance

On White Background

8.17:1

AA AAA

On Black Background

2.57:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F4
100
#DFE5
200
#C4CF
300
#96AA
400
#5F7E
500
#3259
600
#183E
700
#1331
800
#0D23
900
#0917
950
#050E

Shades

Darker variations

1#1538B5
2#1332A1
3#102B8D
4#0E2579
5#0C1F64
6#091950
7#07133C
8#050C28
9#020614

Tints

Lighter variations

1#1B46E2
2#335AE7
3#4C6EEA
4#6683ED
5#7F98F0
6#99ACF3
7#B2C1F6
8#CCD6F9
9#E5EAFC

Tones

Muted variations

1#2043C0
2#2948B7
3#324DAE
4#3B52A5
5#44579D
6#4D5C94
7#56618B
8#5E6682
9#676B79

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F4
#F1F4FD
BackgroundsSubtle highlightsCard backgrounds
100
DFE5
#DFE5FB
Light backgroundsTable row hoverSkeleton loading
200
C4CF
#C4CFF8
Secondary backgroundsInput backgroundsDividers
300
96AA
#96AAF3
BordersInactive statesPlaceholder text
400
5F7E
#5F7EEC
Disabled statesSecondary iconsMuted text
500
3259
#3259E7
Primary brand colorCTAsActive elementsLinks
600
183E
#183EC9
Hover statesFocus ringsPrimary buttons hover
700
1331
#1331A0
Active/pressed statesDark mode accentsSecondary text
800
0D23
#0D2372
Text on light backgroundsHeadingsStrong borders
900
0917
#091749
Primary textHigh emphasis contentDark headings
950
050E
#050E2E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F4FD;
  --cobalt-100: #DFE5FB;
  --cobalt-200: #C4CFF8;
  --cobalt-300: #96AAF3;
  --cobalt-400: #5F7EEC;
  --cobalt-500: #3259E7;
  --cobalt-600: #183EC9;
  --cobalt-700: #1331A0;
  --cobalt-800: #0D2372;
  --cobalt-900: #091749;
  --cobalt-950: #050E2E;
}
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