Cobalt

#2B5588

Blue

Color Codes

All color formats for development

HEX
#2B5588
RGB
rgb(43, 85, 136)
HSL
hsl(213, 52%, 35%)
OKLCH
oklch(0.445 0.097 254.5)
CMYK
cmyk(68%, 38%, 0%, 47%)

Accessibility

WCAG contrast compliance

On White Background

7.62:1

AA AAA

On Black Background

2.76:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F7
100
#E4EC
200
#CDDC
300
#A6C1
400
#77A1
500
#5186
600
#366A
700
#2B55
800
#1F3C
900
#1427
950
#0C18

Shades

Darker variations

1#274C7A
2#22446D
3#1E3B5F
4#1A3351
5#152A44
6#112236
7#0D1929
8#09111B
9#04080E

Tints

Lighter variations

1#3364A1
2#3B74BA
3#4F85C7
4#6896CF
5#81A8D7
6#9AB9DF
7#B3CBE7
8#CDDCEF
9#E6EEF7

Tones

Muted variations

1#2F5583
2#34567E
3#39567A
4#3D5675
5#425770
6#47576C
7#4B5867
8#505863
9#55595E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F7
#F3F7FB
BackgroundsSubtle highlightsCard backgrounds
100
E4EC
#E4ECF6
Light backgroundsTable row hoverSkeleton loading
200
CDDC
#CDDCEF
Secondary backgroundsInput backgroundsDividers
300
A6C1
#A6C1E3
BordersInactive statesPlaceholder text
400
77A1
#77A1D4
Disabled statesSecondary iconsMuted text
500
5186
#5186C8
Primary brand colorCTAsActive elementsLinks
600
366A
#366AAB
Hover statesFocus ringsPrimary buttons hover
700
2B55
#2B5588
Active/pressed statesDark mode accentsSecondary text
800
1F3C
#1F3C61
Text on light backgroundsHeadingsStrong borders
900
1427
#14273E
Primary textHigh emphasis contentDark headings
950
0C18
#0C1827
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F7FB;
  --cobalt-100: #E4ECF6;
  --cobalt-200: #CDDCEF;
  --cobalt-300: #A6C1E3;
  --cobalt-400: #77A1D4;
  --cobalt-500: #5186C8;
  --cobalt-600: #366AAB;
  --cobalt-700: #2B5588;
  --cobalt-800: #1F3C61;
  --cobalt-900: #14273E;
  --cobalt-950: #0C1827;
}
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