Cobalt

#2A4289

Blue

Color Codes

All color formats for development

HEX
#2A4289
RGB
rgb(42, 66, 137)
HSL
hsl(225, 53%, 35%)
OKLCH
oklch(0.401 0.122 266.8)
CMYK
cmyk(69%, 52%, 0%, 46%)

Accessibility

WCAG contrast compliance

On White Background

9.38:1

AA AAA

On Black Background

2.24:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E4E8
200
#CCD5
300
#A5B5
400
#768E
500
#4F6E
600
#3552
700
#2A42
800
#1E2F
900
#131E
950
#0C13

Shades

Darker variations

1#263B7B
2#22346D
3#1D2E60
4#192752
5#152144
6#111A37
7#0D1429
8#080D1B
9#04070E

Tints

Lighter variations

1#324EA2
2#3A5ABB
3#4D6CC8
4#6781D0
5#8096D8
6#9AABE0
7#B3C0E8
8#CCD5EF
9#E6EAF7

Tones

Muted variations

1#2F4484
2#33467F
3#38497A
4#3D4B76
5#424D71
6#46506C
7#4B5267
8#505563
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
CCD5
#CCD5EF
Secondary backgroundsInput backgroundsDividers
300
A5B5
#A5B5E3
BordersInactive statesPlaceholder text
400
768E
#768ED5
Disabled statesSecondary iconsMuted text
500
4F6E
#4F6EC9
Primary brand colorCTAsActive elementsLinks
600
3552
#3552AC
Hover statesFocus ringsPrimary buttons hover
700
2A42
#2A4289
Active/pressed statesDark mode accentsSecondary text
800
1E2F
#1E2F62
Text on light backgroundsHeadingsStrong borders
900
131E
#131E3E
Primary textHigh emphasis contentDark headings
950
0C13
#0C1327
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FB;
  --cobalt-100: #E4E8F7;
  --cobalt-200: #CCD5EF;
  --cobalt-300: #A5B5E3;
  --cobalt-400: #768ED5;
  --cobalt-500: #4F6EC9;
  --cobalt-600: #3552AC;
  --cobalt-700: #2A4289;
  --cobalt-800: #1E2F62;
  --cobalt-900: #131E3E;
  --cobalt-950: #0C1327;
}
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