Cobalt

#2A3E89

Blue

Color Codes

All color formats for development

HEX
#2A3E89
RGB
rgb(42, 62, 137)
HSL
hsl(227, 53%, 35%)
OKLCH
oklch(0.393 0.127 268.6)
CMYK
cmyk(69%, 55%, 0%, 46%)

Accessibility

WCAG contrast compliance

On White Background

9.77:1

AA AAA

On Black Background

2.15:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E4E8
200
#CCD4
300
#A5B3
400
#768B
500
#4F6A
600
#354F
700
#2A3E
800
#1E2D
900
#131D
950
#0C12

Shades

Darker variations

1#26387B
2#22326D
3#1D2C60
4#192552
5#151F44
6#111937
7#0D1329
8#080C1B
9#04060E

Tints

Lighter variations

1#324AA2
2#3A56BB
3#4D68C8
4#677ED0
5#8093D8
6#9AA9E0
7#B3BEE8
8#CCD4EF
9#E6E9F7

Tones

Muted variations

1#2F4184
2#33447F
3#38467A
4#3D4976
5#424C71
6#464F6C
7#4B5167
8#505463
9#55575E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FB
BackgroundsSubtle highlightsCard backgrounds
100
E4E8
#E4E8F7
Light backgroundsTable row hoverSkeleton loading
200
CCD4
#CCD4EF
Secondary backgroundsInput backgroundsDividers
300
A5B3
#A5B3E3
BordersInactive statesPlaceholder text
400
768B
#768BD5
Disabled statesSecondary iconsMuted text
500
4F6A
#4F6AC9
Primary brand colorCTAsActive elementsLinks
600
354F
#354FAC
Hover statesFocus ringsPrimary buttons hover
700
2A3E
#2A3E89
Active/pressed statesDark mode accentsSecondary text
800
1E2D
#1E2D62
Text on light backgroundsHeadingsStrong borders
900
131D
#131D3E
Primary textHigh emphasis contentDark headings
950
0C12
#0C1227
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FB;
  --cobalt-100: #E4E8F7;
  --cobalt-200: #CCD4EF;
  --cobalt-300: #A5B3E3;
  --cobalt-400: #768BD5;
  --cobalt-500: #4F6AC9;
  --cobalt-600: #354FAC;
  --cobalt-700: #2A3E89;
  --cobalt-800: #1E2D62;
  --cobalt-900: #131D3E;
  --cobalt-950: #0C1227;
}
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