Cobalt

#2A4089

Blue

Color Codes

All color formats for development

HEX
#2A4089
RGB
rgb(42, 64, 137)
HSL
hsl(226, 53%, 35%)
OKLCH
oklch(0.397 0.125 267.7)
CMYK
cmyk(69%, 53%, 0%, 46%)

Accessibility

WCAG contrast compliance

On White Background

9.58:1

AA AAA

On Black Background

2.19:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E4E8
200
#CCD4
300
#A5B4
400
#768D
500
#4F6C
600
#3550
700
#2A40
800
#1E2E
900
#131D
950
#0C12

Shades

Darker variations

1#263A7B
2#22336D
3#1D2D60
4#192652
5#152044
6#111A37
7#0D1329
8#080D1B
9#04060E

Tints

Lighter variations

1#324CA2
2#3A58BB
3#4D6AC8
4#677FD0
5#8095D8
6#9AAAE0
7#B3BFE8
8#CCD4EF
9#E6EAF7

Tones

Muted variations

1#2F4384
2#33457F
3#38487A
4#3D4A76
5#424D71
6#464F6C
7#4B5267
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
A5B4
#A5B4E3
BordersInactive statesPlaceholder text
400
768D
#768DD5
Disabled statesSecondary iconsMuted text
500
4F6C
#4F6CC9
Primary brand colorCTAsActive elementsLinks
600
3550
#3550AC
Hover statesFocus ringsPrimary buttons hover
700
2A40
#2A4089
Active/pressed statesDark mode accentsSecondary text
800
1E2E
#1E2E62
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: #A5B4E3;
  --cobalt-400: #768DD5;
  --cobalt-500: #4F6CC9;
  --cobalt-600: #3550AC;
  --cobalt-700: #2A4089;
  --cobalt-800: #1E2E62;
  --cobalt-900: #131D3E;
  --cobalt-950: #0C1227;
}
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