Cobalt

#183BC9

Blue

Color Codes

All color formats for development

HEX
#183BC9
RGB
rgb(24, 59, 201)
HSL
hsl(228, 79%, 44%)
OKLCH
oklch(0.44 0.22 265.6)
CMYK
cmyk(88%, 71%, 0%, 21%)

Accessibility

WCAG contrast compliance

On White Background

8.37:1

AA AAA

On Black Background

2.51:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F4
100
#DFE5
200
#C4CE
300
#96A9
400
#5F7B
500
#3256
600
#183B
700
#132F
800
#0D22
900
#0915
950
#050D

Shades

Darker variations

1#1535B5
2#132FA1
3#10298D
4#0E2379
5#0C1E64
6#091850
7#07123C
8#050C28
9#020614

Tints

Lighter variations

1#1B43E2
2#3357E7
3#4C6CEA
4#6681ED
5#7F96F0
6#99ABF3
7#B2C0F6
8#CCD5F9
9#E5EAFC

Tones

Muted variations

1#2040C0
2#2946B7
3#324BAE
4#3B50A5
5#44569D
6#4D5B94
7#56608B
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
C4CE
#C4CEF8
Secondary backgroundsInput backgroundsDividers
300
96A9
#96A9F3
BordersInactive statesPlaceholder text
400
5F7B
#5F7BEC
Disabled statesSecondary iconsMuted text
500
3256
#3256E7
Primary brand colorCTAsActive elementsLinks
600
183B
#183BC9
Hover statesFocus ringsPrimary buttons hover
700
132F
#132FA0
Active/pressed statesDark mode accentsSecondary text
800
0D22
#0D2272
Text on light backgroundsHeadingsStrong borders
900
0915
#091549
Primary textHigh emphasis contentDark headings
950
050D
#050D2E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F4FD;
  --cobalt-100: #DFE5FB;
  --cobalt-200: #C4CEF8;
  --cobalt-300: #96A9F3;
  --cobalt-400: #5F7BEC;
  --cobalt-500: #3256E7;
  --cobalt-600: #183BC9;
  --cobalt-700: #132FA0;
  --cobalt-800: #0D2272;
  --cobalt-900: #091549;
  --cobalt-950: #050D2E;
}
Generate More ShadesCreate PaletteConvert Color